From 3b11f2e2d1be76ccc08ee91915a69c6c28bdc42e Mon Sep 17 00:00:00 2001
From: Patrick Filler <pf@patrickfiller.com>
Date: Tue, 27 Sep 2011 16:51:29 -0400
Subject: [PATCH 1/6] Create option to allow deselect on Chosen single selects.

---
 chosen/chosen.css           | 10 ++++++++++
 chosen/chosen.jquery.js     | 22 +++++++++++++++++++++-
 chosen/chosen.jquery.min.js |  2 +-
 chosen/chosen.proto.js      | 24 +++++++++++++++++++++++-
 chosen/chosen.proto.min.js  |  2 +-
 coffee/chosen.jquery.coffee | 15 ++++++++++++++-
 coffee/chosen.proto.coffee  | 15 ++++++++++++++-
 7 files changed, 84 insertions(+), 6 deletions(-)

diff --git a/chosen/chosen.css b/chosen/chosen.css
index 8ef22a7..a3bb2c3 100644
--- a/chosen/chosen.css
+++ b/chosen/chosen.css
@@ -57,6 +57,16 @@
   -ms-text-overflow: ellipsis;
   text-overflow: ellipsis;
 }
+.chzn-container-single .chzn-single abbr {
+  display: block;
+  position: absolute;
+  right: 26px;
+  top: 9px;
+  width: 8px;
+  height: 9px;
+  font-size: 1px;
+  background: url(chosen-sprite.png) right top no-repeat;
+}
 .chzn-container-single .chzn-single div {
   -webkit-border-radius: 0 4px 4px 0;
   -moz-border-radius   : 0 4px 4px 0;
diff --git a/chosen/chosen.jquery.js b/chosen/chosen.jquery.js
index 58d4be1..ec39a53 100644
--- a/chosen/chosen.jquery.js
+++ b/chosen/chosen.jquery.js
@@ -52,6 +52,7 @@
       this.results_showing = false;
       this.result_highlighted = null;
       this.result_single_selected = null;
+      this.allow_single_deselect = this.options.allow_single_deselect || false;
       this.choices = 0;
       return this.results_none_found = this.options.no_results_text || "No results match";
     };
@@ -103,6 +104,9 @@
       this.container.mousedown(__bind(function(evt) {
         return this.container_mousedown(evt);
       }, this));
+      this.container.mouseup(__bind(function(evt) {
+        return this.container_mouseup(evt);
+      }, this));
       this.container.mouseenter(__bind(function(evt) {
         return this.mouse_enter(evt);
       }, this));
@@ -157,11 +161,13 @@
       }
     };
     Chosen.prototype.container_mousedown = function(evt) {
+      var target;
       if (!this.is_disabled) {
+        target = evt.target;
         if (evt && evt.type === "mousedown") {
           evt.stopPropagation();
         }
-        if (!this.pending_destroy_click) {
+        if (!this.pending_destroy_click && target.nodeName !== "ABBR") {
           if (!this.active_field) {
             if (this.is_multiple) {
               this.search_field.val("");
@@ -178,6 +184,11 @@
         }
       }
     };
+    Chosen.prototype.container_mouseup = function(evt) {
+      if (evt.target.nodeName === "ABBR") {
+        return this.results_reset(evt);
+      }
+    };
     Chosen.prototype.mouse_enter = function() {
       return this.mouse_on_container = true;
     };
@@ -431,6 +442,12 @@
       this.result_deselect(link.attr("rel"));
       return link.parents('li').first().remove();
     };
+    Chosen.prototype.results_reset = function(evt) {
+      this.form_field.options[0].selected = true;
+      this.selected_item.find("span").text(this.default_text);
+      this.show_search_field_default();
+      return $(evt.target).remove();
+    };
     Chosen.prototype.result_select = function(evt) {
       var high, high_id, item, position;
       if (this.result_highlight) {
@@ -452,6 +469,9 @@
           this.choice_build(item);
         } else {
           this.selected_item.find("span").first().text(item.text);
+          if (this.allow_single_deselect) {
+            this.selected_item.find("span").first().after("<abbr></abbr>");
+          }
         }
         if (!(evt.metaKey && this.is_multiple)) {
           this.results_hide();
diff --git a/chosen/chosen.jquery.min.js b/chosen/chosen.jquery.min.js
index 7f1e8bc..51e8962 100644
--- a/chosen/chosen.jquery.min.js
+++ b/chosen/chosen.jquery.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){if(!this.is_disabled){b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):this.selected_item.find("span").first().text(d.text),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b.target,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default();return a(b.target).remove()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index 160eeb0..c131ab3 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -38,6 +38,7 @@
       this.results_showing = false;
       this.result_highlighted = null;
       this.result_single_selected = null;
+      this.allow_single_deselect = this.options.allow_single_deselect || false;
       this.choices = 0;
       this.results_none_found = this.options.no_results_text || "No results match";
       this.single_temp = new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>');
@@ -94,6 +95,9 @@
       this.container.observe("mousedown", __bind(function(evt) {
         return this.container_mousedown(evt);
       }, this));
+      this.container.observe("mouseup", __bind(function(evt) {
+        return this.container_mouseup(evt);
+      }, this));
       this.container.observe("mouseenter", __bind(function(evt) {
         return this.mouse_enter(evt);
       }, this));
@@ -148,11 +152,13 @@
       }
     };
     Chosen.prototype.container_mousedown = function(evt) {
+      var target;
       if (!this.is_disabled) {
+        target = evt.target;
         if (evt && evt.type === "mousedown") {
           evt.stop();
         }
-        if (!this.pending_destroy_click) {
+        if (!this.pending_destroy_click && target.nodeName !== "ABBR") {
           if (!this.active_field) {
             if (this.is_multiple) {
               this.search_field.clear();
@@ -168,6 +174,11 @@
         }
       }
     };
+    Chosen.prototype.container_mouseup = function(evt) {
+      if (evt.target.nodeName === "ABBR") {
+        return this.results_reset(evt);
+      }
+    };
     Chosen.prototype.mouse_enter = function() {
       return this.mouse_on_container = true;
     };
@@ -419,6 +430,12 @@
       this.result_deselect(link.readAttribute("rel"));
       return link.up('li').remove();
     };
+    Chosen.prototype.results_reset = function(evt) {
+      this.form_field.options[0].selected = true;
+      this.selected_item.down("span").update(this.default_text);
+      this.show_search_field_default();
+      return evt.target.remove();
+    };
     Chosen.prototype.result_select = function(evt) {
       var high, item, position;
       if (this.result_highlight) {
@@ -439,6 +456,11 @@
           this.choice_build(item);
         } else {
           this.selected_item.down("span").update(item.html);
+          if (this.allow_single_deselect) {
+            this.selected_item.down("span").insert({
+              after: "<abbr></abbr>"
+            });
+          }
         }
         if (!(evt.metaKey && this.is_multiple)) {
           this.results_hide();
diff --git a/chosen/chosen.proto.min.js b/chosen/chosen.proto.min.js
index 6270efd..040ebaa 100644
--- a/chosen/chosen.proto.min.js
+++ b/chosen/chosen.proto.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){if(!this.is_disabled){a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):this.selected_item.down("span").update(c.html),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a.target,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default();return a.target.remove()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/coffee/chosen.jquery.coffee b/coffee/chosen.jquery.coffee
index 1ea52c8..03f7b1e 100644
--- a/coffee/chosen.jquery.coffee
+++ b/coffee/chosen.jquery.coffee
@@ -37,6 +37,7 @@ class Chosen
     @results_showing = false
     @result_highlighted = null
     @result_single_selected = null
+    @allow_single_deselect = @options.allow_single_deselect || false
     @choices = 0
     @results_none_found = @options.no_results_text or "No results match"
 
@@ -90,6 +91,7 @@ class Chosen
 
   register_observers: ->
     @container.mousedown (evt) => this.container_mousedown(evt)
+    @container.mouseup (evt) => this.container_mouseup(evt)
     @container.mouseenter (evt) => this.mouse_enter(evt)
     @container.mouseleave (evt) => this.mouse_leave(evt)
   
@@ -121,9 +123,10 @@ class Chosen
 
   container_mousedown: (evt) ->
     if !@is_disabled
+      target = evt.target
       if evt and evt.type is "mousedown"
         evt.stopPropagation()
-      if not @pending_destroy_click
+      if not @pending_destroy_click and target.nodeName != "ABBR"
         if not @active_field
           @search_field.val "" if @is_multiple
           $(document).click @click_test_action
@@ -136,6 +139,9 @@ class Chosen
       else
         @pending_destroy_click = false
 
+  container_mouseup: (evt) ->
+    this.results_reset(evt) if evt.target.nodeName is "ABBR"
+
   mouse_enter: -> @mouse_on_container = true
   mouse_leave: -> @mouse_on_container = false
 
@@ -352,6 +358,12 @@ class Chosen
     this.result_deselect (link.attr "rel")
     link.parents('li').first().remove()
 
+  results_reset: (evt) ->
+    @form_field.options[0].selected = true
+    @selected_item.find("span").text @default_text
+    this.show_search_field_default()
+    $(evt.target).remove();
+
   result_select: (evt) ->
     if @result_highlight
       high = @result_highlight
@@ -377,6 +389,7 @@ class Chosen
         this.choice_build item
       else
         @selected_item.find("span").first().text item.text
+        @selected_item.find("span").first().after "<abbr></abbr>" if @allow_single_deselect
 
       this.results_hide() unless evt.metaKey and @is_multiple
 
diff --git a/coffee/chosen.proto.coffee b/coffee/chosen.proto.coffee
index 73eb1bb..261dc22 100644
--- a/coffee/chosen.proto.coffee
+++ b/coffee/chosen.proto.coffee
@@ -29,6 +29,7 @@ class Chosen
     @results_showing = false
     @result_highlighted = null
     @result_single_selected = null
+    @allow_single_deselect = @options.allow_single_deselect || false
     @choices = 0
 
     @results_none_found = @options.no_results_text or "No results match"
@@ -85,6 +86,7 @@ class Chosen
 
   register_observers: ->
     @container.observe "mousedown", (evt) => this.container_mousedown(evt)
+    @container.observe "mouseup", (evt) => this.container_mouseup(evt)
     @container.observe "mouseenter", (evt) => this.mouse_enter(evt)
     @container.observe "mouseleave", (evt) => this.mouse_leave(evt)
     
@@ -116,9 +118,10 @@ class Chosen
 
   container_mousedown: (evt) ->
     if !@is_disabled
+      target = evt.target
       if evt and evt.type is "mousedown"
         evt.stop()
-      if not @pending_destroy_click
+      if not @pending_destroy_click and target.nodeName != "ABBR"
         if not @active_field
           @search_field.clear() if @is_multiple
           document.observe "click", @click_test_action
@@ -129,6 +132,9 @@ class Chosen
         this.activate_field()
       else
         @pending_destroy_click = false
+  
+  container_mouseup: (evt) ->
+    this.results_reset(evt) if evt.target.nodeName is "ABBR"
 
   mouse_enter: -> @mouse_on_container = true
   mouse_leave: -> @mouse_on_container = false
@@ -347,6 +353,12 @@ class Chosen
     this.result_deselect link.readAttribute("rel")
     link.up('li').remove()
 
+  results_reset: (evt) ->
+    @form_field.options[0].selected = true
+    @selected_item.down("span").update(@default_text)
+    this.show_search_field_default()
+    evt.target.remove();
+  
   result_select: (evt) ->
     if @result_highlight
       high = @result_highlight
@@ -370,6 +382,7 @@ class Chosen
         this.choice_build item
       else
         @selected_item.down("span").update(item.html)
+        @selected_item.down("span").insert { after: "<abbr></abbr>" } if @allow_single_deselect
 
       this.results_hide() unless evt.metaKey and @is_multiple
 

From 81c084ec991826bf5d6666dae43a126637a2eefa Mon Sep 17 00:00:00 2001
From: Patrick Filler <pf@patrickfiller.com>
Date: Tue, 27 Sep 2011 16:57:51 -0400
Subject: [PATCH 2/6] If deselecting when Chosen is open, close it up.

---
 chosen/chosen.jquery.js     | 5 ++++-
 chosen/chosen.jquery.min.js | 2 +-
 chosen/chosen.proto.js      | 5 ++++-
 chosen/chosen.proto.min.js  | 2 +-
 coffee/chosen.jquery.coffee | 1 +
 coffee/chosen.proto.coffee  | 3 ++-
 6 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/chosen/chosen.jquery.js b/chosen/chosen.jquery.js
index ec39a53..3b1b1a0 100644
--- a/chosen/chosen.jquery.js
+++ b/chosen/chosen.jquery.js
@@ -446,7 +446,10 @@
       this.form_field.options[0].selected = true;
       this.selected_item.find("span").text(this.default_text);
       this.show_search_field_default();
-      return $(evt.target).remove();
+      $(evt.target).remove();
+      if (this.active_field) {
+        return this.results_hide();
+      }
     };
     Chosen.prototype.result_select = function(evt) {
       var high, high_id, item, position;
diff --git a/chosen/chosen.jquery.min.js b/chosen/chosen.jquery.min.js
index 51e8962..c57a1e9 100644
--- a/chosen/chosen.jquery.min.js
+++ b/chosen/chosen.jquery.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b.target,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default();return a(b.target).remove()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b.target,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default(),a(b.target).remove();if(this.active_field)return this.results_hide()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index c131ab3..9284579 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -434,7 +434,10 @@
       this.form_field.options[0].selected = true;
       this.selected_item.down("span").update(this.default_text);
       this.show_search_field_default();
-      return evt.target.remove();
+      evt.target.remove();
+      if (this.active_field) {
+        return this.results_hide();
+      }
     };
     Chosen.prototype.result_select = function(evt) {
       var high, item, position;
diff --git a/chosen/chosen.proto.min.js b/chosen/chosen.proto.min.js
index 040ebaa..ab54051 100644
--- a/chosen/chosen.proto.min.js
+++ b/chosen/chosen.proto.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a.target,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default();return a.target.remove()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a.target,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default(),a.target.remove();if(this.active_field)return this.results_hide()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/coffee/chosen.jquery.coffee b/coffee/chosen.jquery.coffee
index 03f7b1e..d6736ba 100644
--- a/coffee/chosen.jquery.coffee
+++ b/coffee/chosen.jquery.coffee
@@ -363,6 +363,7 @@ class Chosen
     @selected_item.find("span").text @default_text
     this.show_search_field_default()
     $(evt.target).remove();
+    this.results_hide() if @active_field
 
   result_select: (evt) ->
     if @result_highlight
diff --git a/coffee/chosen.proto.coffee b/coffee/chosen.proto.coffee
index 261dc22..dd56ae7 100644
--- a/coffee/chosen.proto.coffee
+++ b/coffee/chosen.proto.coffee
@@ -357,7 +357,8 @@ class Chosen
     @form_field.options[0].selected = true
     @selected_item.down("span").update(@default_text)
     this.show_search_field_default()
-    evt.target.remove();
+    evt.target.remove()
+    this.results_hide() if @active_field
   
   result_select: (evt) ->
     if @result_highlight

From ed69a328c2e7ae4e73a3018a6ea68bbb0d320306 Mon Sep 17 00:00:00 2001
From: Patrick Filler <pf@patrickfiller.com>
Date: Wed, 28 Sep 2011 11:10:34 -0400
Subject: [PATCH 3/6] Larger delete/deselect targets for happier clicking.

---
 chosen/chosen-sprite.png | Bin 742 -> 3999 bytes
 chosen/chosen.css        |  19 +++++++++++--------
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/chosen/chosen-sprite.png b/chosen/chosen-sprite.png
index f20db4439ea5c1038126bf326c8fd048b03a8226..3a0a0ec71c133a4632d460fe82c04af7a9208c74 100644
GIT binary patch
delta 3663
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diff --git a/chosen/chosen.css b/chosen/chosen.css
index a3bb2c3..2a50a2b 100644
--- a/chosen/chosen.css
+++ b/chosen/chosen.css
@@ -62,11 +62,14 @@
   position: absolute;
   right: 26px;
   top: 9px;
-  width: 8px;
-  height: 9px;
+  width: 12px;
+  height: 13px;
   font-size: 1px;
   background: url(chosen-sprite.png) right top no-repeat;
 }
+.chzn-container-single .chzn-single abbr:hover {
+  background-position: right -11px;
+}
 .chzn-container-single .chzn-single div {
   -webkit-border-radius: 0 4px 4px 0;
   -moz-border-radius   : 0 4px 4px 0;
@@ -201,18 +204,18 @@
 .chzn-container-multi .chzn-choices .search-choice .search-choice-close {
   display: block;
   position: absolute;
-  right: 5px;
-  top: 6px;
-  width: 8px;
-  height: 9px;
+  right: 3px;
+  top: 4px;
+  width: 12px;
+  height: 13px;
   font-size: 1px;
   background: url(chosen-sprite.png) right top no-repeat;
 }
 .chzn-container-multi .chzn-choices .search-choice .search-choice-close:hover {
-  background-position: right -9px;
+  background-position: right -11px;
 }
 .chzn-container-multi .chzn-choices .search-choice-focus .search-choice-close {
-  background-position: right -9px;
+  background-position: right -11px;
 }
 /* @end */
 

From 66e5da9decc9e438c0c2d70b0d32b658d9ada73b Mon Sep 17 00:00:00 2001
From: Patrick Filler <pf@patrickfiller.com>
Date: Wed, 28 Sep 2011 11:15:37 -0400
Subject: [PATCH 4/6] Re-center deselect close icon.

---
 chosen/chosen.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chosen/chosen.css b/chosen/chosen.css
index 2a50a2b..84f7752 100644
--- a/chosen/chosen.css
+++ b/chosen/chosen.css
@@ -61,7 +61,7 @@
   display: block;
   position: absolute;
   right: 26px;
-  top: 9px;
+  top: 8px;
   width: 12px;
   height: 13px;
   font-size: 1px;

From 5a783bbb96a30ae8cc2eeb34adc9a2757c8a97f2 Mon Sep 17 00:00:00 2001
From: Patrick Filler <pf@patrickfiller.com>
Date: Wed, 28 Sep 2011 11:31:10 -0400
Subject: [PATCH 5/6] Test for presence of event before using its target!

---
 chosen/chosen.jquery.js     | 6 +++---
 chosen/chosen.jquery.min.js | 2 +-
 chosen/chosen.proto.js      | 6 +++---
 chosen/chosen.proto.min.js  | 2 +-
 coffee/chosen.jquery.coffee | 4 ++--
 coffee/chosen.proto.coffee  | 4 ++--
 6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/chosen/chosen.jquery.js b/chosen/chosen.jquery.js
index 3b1b1a0..e843160 100644
--- a/chosen/chosen.jquery.js
+++ b/chosen/chosen.jquery.js
@@ -161,13 +161,13 @@
       }
     };
     Chosen.prototype.container_mousedown = function(evt) {
-      var target;
+      var target_node;
       if (!this.is_disabled) {
-        target = evt.target;
+        target_node = evt != null ? evt.target.nodeName : null;
         if (evt && evt.type === "mousedown") {
           evt.stopPropagation();
         }
-        if (!this.pending_destroy_click && target.nodeName !== "ABBR") {
+        if (!this.pending_destroy_click && target_node !== "ABBR") {
           if (!this.active_field) {
             if (this.is_multiple) {
               this.search_field.val("");
diff --git a/chosen/chosen.jquery.min.js b/chosen/chosen.jquery.min.js
index c57a1e9..23c1170 100644
--- a/chosen/chosen.jquery.min.js
+++ b/chosen/chosen.jquery.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b.target,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default(),a(b.target).remove();if(this.active_field)return this.results_hide()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b!=null?b.target.nodeName:null,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default(),a(b.target).remove();if(this.active_field)return this.results_hide()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index 9284579..710fec3 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -152,13 +152,13 @@
       }
     };
     Chosen.prototype.container_mousedown = function(evt) {
-      var target;
+      var target_node;
       if (!this.is_disabled) {
-        target = evt.target;
+        target_node = evt != null ? evt.target.nodeName : null;
         if (evt && evt.type === "mousedown") {
           evt.stop();
         }
-        if (!this.pending_destroy_click && target.nodeName !== "ABBR") {
+        if (!this.pending_destroy_click && target_node !== "ABBR") {
           if (!this.active_field) {
             if (this.is_multiple) {
               this.search_field.clear();
diff --git a/chosen/chosen.proto.min.js b/chosen/chosen.proto.min.js
index ab54051..6286a30 100644
--- a/chosen/chosen.proto.min.js
+++ b/chosen/chosen.proto.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a.target,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b.nodeName!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default(),a.target.remove();if(this.active_field)return this.results_hide()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a!=null?a.target.nodeName:null,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default(),a.target.remove();if(this.active_field)return this.results_hide()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/coffee/chosen.jquery.coffee b/coffee/chosen.jquery.coffee
index d6736ba..3b39b17 100644
--- a/coffee/chosen.jquery.coffee
+++ b/coffee/chosen.jquery.coffee
@@ -123,10 +123,10 @@ class Chosen
 
   container_mousedown: (evt) ->
     if !@is_disabled
-      target = evt.target
+      target_node =  if evt? then evt.target.nodeName else null
       if evt and evt.type is "mousedown"
         evt.stopPropagation()
-      if not @pending_destroy_click and target.nodeName != "ABBR"
+      if not @pending_destroy_click and target_node != "ABBR"
         if not @active_field
           @search_field.val "" if @is_multiple
           $(document).click @click_test_action
diff --git a/coffee/chosen.proto.coffee b/coffee/chosen.proto.coffee
index dd56ae7..3c728e4 100644
--- a/coffee/chosen.proto.coffee
+++ b/coffee/chosen.proto.coffee
@@ -118,10 +118,10 @@ class Chosen
 
   container_mousedown: (evt) ->
     if !@is_disabled
-      target = evt.target
+      target_node =  if evt? then evt.target.nodeName else null
       if evt and evt.type is "mousedown"
         evt.stop()
-      if not @pending_destroy_click and target.nodeName != "ABBR"
+      if not @pending_destroy_click and target_node != "ABBR"
         if not @active_field
           @search_field.clear() if @is_multiple
           document.observe "click", @click_test_action

From eb2636838e486599fd9aa15f3314fafb25e28bb6 Mon Sep 17 00:00:00 2001
From: Patrick Filler <pf@patrickfiller.com>
Date: Wed, 28 Sep 2011 11:46:36 -0400
Subject: [PATCH 6/6] When using allow_single_deselect, first element must have
 blank text.

---
 chosen/chosen.jquery.js     | 2 +-
 chosen/chosen.jquery.min.js | 2 +-
 chosen/chosen.proto.js      | 2 +-
 chosen/chosen.proto.min.js  | 2 +-
 coffee/chosen.jquery.coffee | 2 +-
 coffee/chosen.proto.coffee  | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/chosen/chosen.jquery.js b/chosen/chosen.jquery.js
index e843160..209be28 100644
--- a/chosen/chosen.jquery.js
+++ b/chosen/chosen.jquery.js
@@ -52,7 +52,7 @@
       this.results_showing = false;
       this.result_highlighted = null;
       this.result_single_selected = null;
-      this.allow_single_deselect = this.options.allow_single_deselect || false;
+      this.allow_single_deselect = (this.options.allow_single_deselect != null) && this.form_field.options[0].text === "" ? this.options.allow_single_deselect : false;
       this.choices = 0;
       return this.results_none_found = this.options.no_results_text || "No results match";
     };
diff --git a/chosen/chosen.jquery.min.js b/chosen/chosen.jquery.min.js
index 23c1170..99f49d1 100644
--- a/chosen/chosen.jquery.min.js
+++ b/chosen/chosen.jquery.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b!=null?b.target.nodeName:null,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default(),a(b.target).remove();if(this.active_field)return this.results_hide()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d,e=function(a,b){return function(){return a.apply(b,arguments)}};d=this,a=jQuery,a.fn.extend({chosen:function(c){return a.browser!=="msie"||a.browser.version!=="6.0"&&a.browser.version!=="7.0"?a(this).each(function(d){if(!a(this).hasClass("chzn-done"))return new b(this,c)}):this}}),b=function(){function b(b,c){this.form_field=b,this.options=c!=null?c:{},this.set_default_values(),this.form_field_jq=a(this.form_field),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field_jq.hasClass("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field_jq.addClass("chzn-done")}b.prototype.set_default_values=function(){this.click_test_action=e(function(a){return this.test_active_click(a)},this),this.activate_action=e(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect!=null&&this.form_field.options[0].text===""?this.options.allow_single_deselect:!1,this.choices=0;return this.results_none_found=this.options.no_results_text||"No results match"},b.prototype.set_up_html=function(){var b,d,e,f;this.container_id=this.form_field.id.length?this.form_field.id.replace(/(:|\.)/g,"_"):this.generate_field_id(),this.container_id+="_chzn",this.f_width=this.form_field_jq.outerWidth(),this.default_text=this.form_field_jq.data("placeholder")?this.form_field_jq.data("placeholder"):this.default_text_default,b=a("<div />",{id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px;"}),this.is_multiple?b.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'):b.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.form_field_jq.hide().after(b),this.container=a("#"+this.container_id),this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.find("div.chzn-drop").first(),d=this.container.height(),e=this.f_width-c(this.dropdown),this.dropdown.css({width:e+"px",top:d+"px"}),this.search_field=this.container.find("input").first(),this.search_results=this.container.find("ul.chzn-results").first(),this.search_field_scale(),this.search_no_results=this.container.find("li.no-results").first(),this.is_multiple?(this.search_choices=this.container.find("ul.chzn-choices").first(),this.search_container=this.container.find("li.search-field").first()):(this.search_container=this.container.find("div.chzn-search").first(),this.selected_item=this.container.find(".chzn-single").first(),f=e-c(this.search_container)-c(this.search_field),this.search_field.css({width:f+"px"})),this.results_build();return this.set_tab_index()},b.prototype.register_observers=function(){this.container.mousedown(e(function(a){return this.container_mousedown(a)},this)),this.container.mouseup(e(function(a){return this.container_mouseup(a)},this)),this.container.mouseenter(e(function(a){return this.mouse_enter(a)},this)),this.container.mouseleave(e(function(a){return this.mouse_leave(a)},this)),this.search_results.mouseup(e(function(a){return this.search_results_mouseup(a)},this)),this.search_results.mouseover(e(function(a){return this.search_results_mouseover(a)},this)),this.search_results.mouseout(e(function(a){return this.search_results_mouseout(a)},this)),this.form_field_jq.bind("liszt:updated",e(function(a){return this.results_update_field(a)},this)),this.search_field.blur(e(function(a){return this.input_blur(a)},this)),this.search_field.keyup(e(function(a){return this.keyup_checker(a)},this)),this.search_field.keydown(e(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.click(e(function(a){return this.choices_click(a)},this));return this.search_field.focus(e(function(a){return this.input_focus(a)},this))}},b.prototype.search_field_disabled=function(){this.is_disabled=this.form_field_jq.attr("disabled");if(this.is_disabled){this.container.addClass("chzn-disabled"),this.search_field.attr("disabled",!0),this.is_multiple||this.selected_item.unbind("focus",this.activate_action);return this.close_field()}this.container.removeClass("chzn-disabled"),this.search_field.attr("disabled",!1);if(!this.is_multiple)return this.selected_item.bind("focus",this.activate_action)},b.prototype.container_mousedown=function(b){var c;if(!this.is_disabled){c=b!=null?b.target.nodeName:null,b&&b.type==="mousedown"&&b.stopPropagation();if(!this.pending_destroy_click&&c!=="ABBR"){this.active_field?!this.is_multiple&&b&&(a(b.target)===this.selected_item||a(b.target).parents("a.chzn-single").length)&&(b.preventDefault(),this.results_toggle()):(this.is_multiple&&this.search_field.val(""),a(document).click(this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},b.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},b.prototype.mouse_enter=function(){return this.mouse_on_container=!0},b.prototype.mouse_leave=function(){return this.mouse_on_container=!1},b.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(e(function(){return this.container_mousedown()},this),50)},b.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(e(function(){return this.blur_test()},this),100)}},b.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClass("chzn-container-active"))return this.close_field()},b.prototype.close_field=function(){a(document).unbind("click",this.click_test_action),this.is_multiple||(this.selected_item.attr("tabindex",this.search_field.attr("tabindex")),this.search_field.attr("tabindex",-1)),this.active_field=!1,this.results_hide(),this.container.removeClass("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},b.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.attr("tabindex",this.selected_item.attr("tabindex")),this.selected_item.attr("tabindex",-1)),this.container.addClass("chzn-container-active"),this.active_field=!0,this.search_field.val(this.search_field.val());return this.search_field.focus()},b.prototype.test_active_click=function(b){return a(b.target).parents("#"+this.container_id).length?this.active_field=!0:this.close_field()},b.prototype.results_build=function(){var a,b,c,e,f,g;c=new Date,this.parsing=!0,this.results_data=d.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.find("li.search-choice").remove(),this.choices=0):this.is_multiple||this.selected_item.find("span").text(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.find("span").text(b.text));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.html(a);return this.parsing=!1},b.prototype.result_add_group=function(b){if(!b.disabled){b.dom_id=this.container_id+"_g_"+b.array_index;return'<li id="'+b.dom_id+'" class="group-result">'+a("<div />").text(b.label).html()+"</li>"}return""},b.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},b.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},b.prototype.result_do_highlight=function(a){var b,c,d,e,f;if(a.length){this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClass("highlighted"),d=parseInt(this.search_results.css("maxHeight"),10),f=this.search_results.scrollTop(),e=d+f,c=this.result_highlight.position().top+this.search_results.scrollTop(),b=c+this.result_highlight.outerHeight();if(b>=e)return this.search_results.scrollTop(b-d>0?b-d:0);if(c<f)return this.search_results.scrollTop(c)}},b.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClass("highlighted");return this.result_highlight=null},b.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},b.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClass("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.height():this.container.height()-1,this.dropdown.css({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.val(this.search_field.val());return this.winnow_results()},b.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClass("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.css({left:"-9000px"});return this.results_showing=!1},b.prototype.set_tab_index=function(a){var b;if(this.form_field_jq.attr("tabindex")){b=this.form_field_jq.attr("tabindex"),this.form_field_jq.attr("tabindex",-1);if(this.is_multiple)return this.search_field.attr("tabindex",b);this.selected_item.attr("tabindex",b);return this.search_field.attr("tabindex",-1)}},b.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default")}this.search_field.val("");return this.search_field.removeClass("default")},b.prototype.search_results_mouseup=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c.length){this.result_highlight=c;return this.result_select(b)}},b.prototype.search_results_mouseover=function(b){var c;c=a(b.target).hasClass("active-result")?a(b.target):a(b.target).parents(".active-result").first();if(c)return this.result_do_highlight(c)},b.prototype.search_results_mouseout=function(b){if(a(b.target).hasClass("active-result"))return this.result_clear_highlight()},b.prototype.choices_click=function(b){b.preventDefault();if(this.active_field&&!a(b.target).hasClass("search-choice")&&!this.results_showing)return this.results_show()},b.prototype.choice_build=function(b){var c,d;c=this.container_id+"_c_"+b.array_index,this.choices+=1,this.search_container.before('<li class="search-choice" id="'+c+'"><span>'+b.html+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+b.array_index+'"></a></li>'),d=a("#"+c).find("a").first();return d.click(e(function(a){return this.choice_destroy_link_click(a)},this))},b.prototype.choice_destroy_link_click=function(b){b.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a(b.target))}return b.stopPropagation},b.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.val().length<1&&this.results_hide(),this.result_deselect(a.attr("rel"));return a.parents("li").first().remove()},b.prototype.results_reset=function(b){this.form_field.options[0].selected=!0,this.selected_item.find("span").text(this.default_text),this.show_search_field_default(),a(b.target).remove();if(this.active_field)return this.results_hide()},b.prototype.result_select=function(a){var b,c,d,e;if(this.result_highlight){b=this.result_highlight,c=b.attr("id"),this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.find(".result-selected").removeClass("result-selected"),this.result_single_selected=b),b.addClass("result-selected"),e=c.substr(c.lastIndexOf("_")+1),d=this.results_data[e],d.selected=!0,this.form_field.options[d.options_index].selected=!0,this.is_multiple?this.choice_build(d):(this.selected_item.find("span").first().text(d.text),this.allow_single_deselect&&this.selected_item.find("span").first().after("<abbr></abbr>")),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.val(""),this.form_field_jq.trigger("change");return this.search_field_scale()}},b.prototype.result_activate=function(a){return a.addClass("active-result").show()},b.prototype.result_deactivate=function(a){return a.removeClass("active-result").hide()},b.prototype.result_deselect=function(b){var c,d;d=this.results_data[b],d.selected=!1,this.form_field.options[d.options_index].selected=!1,c=a("#"+this.container_id+"_o_"+b),c.removeClass("result-selected").addClass("active-result").show(),this.result_clear_highlight(),this.winnow_results(),this.form_field_jq.trigger("change");return this.search_field_scale()},b.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},b.prototype.winnow_results=function(){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r;j=new Date,this.no_results_clear(),h=0,i=this.search_field.val()===this.default_text?"":a("<div/>").text(a.trim(this.search_field.val())).html(),f=new RegExp("^"+i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),m=new RegExp(i.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),r=this.results_data;for(n=0,p=r.length;n<p;n++){c=r[n];if(!c.disabled&&!c.empty)if(c.group)a("#"+c.dom_id).hide();else if(!this.is_multiple||!c.selected){b=!1,g=c.dom_id;if(f.test(c.html))b=!0,h+=1;else if(c.html.indexOf(" ")>=0||c.html.indexOf("[")===0){e=c.html.replace(/\[|\]/g,"").split(" ");if(e.length)for(o=0,q=e.length;o<q;o++)d=e[o],f.test(d)&&(b=!0,h+=1)}b?(i.length?(k=c.html.search(m),l=c.html.substr(0,k+i.length)+"</em>"+c.html.substr(k+i.length),l=l.substr(0,k)+"<em>"+l.substr(k)):l=c.html,a("#"+g).html!==l&&a("#"+g).html(l),this.result_activate(a("#"+g)),c.group_array_index!=null&&a("#"+this.results_data[c.group_array_index].dom_id).show()):(this.result_highlight&&g===this.result_highlight.attr("id")&&this.result_clear_highlight(),this.result_deactivate(a("#"+g)))}}return h<1&&i.length?this.no_results(i):this.winnow_results_set_highlight()},b.prototype.winnow_results_clear=function(){var b,c,d,e,f;this.search_field.val(""),c=this.search_results.find("li"),f=[];for(d=0,e=c.length;d<e;d++)b=c[d],b=a(b),f.push(b.hasClass("group-result")?b.show():!this.is_multiple||!b.hasClass("result-selected")?this.result_activate(b):void 0);return f},b.prototype.winnow_results_set_highlight=function(){var a,b;if(!this.result_highlight){b=this.is_multiple?[]:this.search_results.find(".result-selected.active-result"),a=b.length?b.first():this.search_results.find(".active-result").first();if(a!=null)return this.result_do_highlight(a)}},b.prototype.no_results=function(b){var c;c=a('<li class="no-results">'+this.results_none_found+' "<span></span>"</li>'),c.find("span").first().html(b);return this.search_results.append(c)},b.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove()},b.prototype.keydown_arrow=function(){var b,c;this.result_highlight?this.results_showing&&(c=this.result_highlight.nextAll("li.active-result").first(),c&&this.result_do_highlight(c)):(b=this.search_results.find("li.active-result").first(),b&&this.result_do_highlight(a(b)));if(!this.results_showing)return this.results_show()},b.prototype.keyup_arrow=function(){var a;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){a=this.result_highlight.prevAll("li.active-result");if(a.length)return this.result_do_highlight(a.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},b.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus")},b.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClass("search-choice-focus");return this.pending_backstroke=null},b.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},b.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=!1;break;case 13:a.preventDefault();break;case 38:a.preventDefault(),this.keyup_arrow();break;case 40:this.keydown_arrow()}},b.prototype.search_field_scale=function(){var b,c,d,e,f,g,h,i,j;if(this.is_multiple){d=0,h=0,f="position:absolute; left: -1000px; top: -1000px; display:none;",g=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(i=0,j=g.length;i<j;i++)e=g[i],f+=e+":"+this.search_field.css(e)+";";c=a("<div />",{style:f}),c.text(this.search_field.val()),a("body").append(c),h=c.width()+25,c.remove(),h>this.f_width-10&&(h=this.f_width-10),this.search_field.css({width:h+"px"}),b=this.container.height();return this.dropdown.css({top:b+"px"})}},b.prototype.generate_field_id=function(){var a;a=this.generate_random_id(),this.form_field.id=a;return a},b.prototype.generate_random_id=function(){var b;b="sel"+this.generate_random_char()+this.generate_random_char()+this.generate_random_char();while(a("#"+b).length>0)b+=this.generate_random_char();return b},b.prototype.generate_random_char=function(){var a,b,c;a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ",c=Math.floor(Math.random()*a.length);return b=a.substring(c,c+1)};return b}(),c=function(a){var b;return b=a.outerWidth()-a.width()},d.get_side_border_padding=c}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index 710fec3..f079e89 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -38,7 +38,7 @@
       this.results_showing = false;
       this.result_highlighted = null;
       this.result_single_selected = null;
-      this.allow_single_deselect = this.options.allow_single_deselect || false;
+      this.allow_single_deselect = (this.options.allow_single_deselect != null) && this.form_field.options[0].text === "" ? this.options.allow_single_deselect : false;
       this.choices = 0;
       this.results_none_found = this.options.no_results_text || "No results match";
       this.single_temp = new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>');
diff --git a/chosen/chosen.proto.min.js b/chosen/chosen.proto.min.js
index 6286a30..b7f588e 100644
--- a/chosen/chosen.proto.min.js
+++ b/chosen/chosen.proto.min.js
@@ -7,4 +7,4 @@
 
 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
 // This file is generated by `cake build`, do not edit it by hand.
-(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect||!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a!=null?a.target.nodeName:null,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default(),a.target.remove();if(this.active_field)return this.results_hide()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
+(function(){var a,b,c,d=function(a,b){return function(){return a.apply(b,arguments)}};c=this,a=function(){function a(a,b){this.form_field=a,this.options=b!=null?b:{},this.set_default_values(),this.is_multiple=this.form_field.multiple,this.is_rtl=this.form_field.hasClassName("chzn-rtl"),this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option",this.set_up_html(),this.register_observers(),this.form_field.addClassName("chzn-done")}a.prototype.set_default_values=function(){this.click_test_action=d(function(a){return this.test_active_click(a)},this),this.activate_action=d(function(a){return this.activate_field(a)},this),this.active_field=!1,this.mouse_on_container=!1,this.results_showing=!1,this.result_highlighted=null,this.result_single_selected=null,this.allow_single_deselect=this.options.allow_single_deselect!=null&&this.form_field.options[0].text===""?this.options.allow_single_deselect:!1,this.choices=0,this.results_none_found=this.options.no_results_text||"No results match",this.single_temp=new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'),this.multi_temp=new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'),this.choice_temp=new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');return this.no_results_temp=new Template('<li class="no-results">'+this.results_none_found+' "<span>#{terms}</span>"</li>')},a.prototype.set_up_html=function(){var a,c,d,e,f;this.container_id=this.form_field.identify().replace(/(:|\.)/g,"_")+"_chzn",this.f_width=this.form_field.getStyle("width")?parseInt(this.form_field.getStyle("width"),10):this.form_field.getWidth(),c={id:this.container_id,"class":"chzn-container"+(this.is_rtl?" chzn-rtl":""),style:"width: "+this.f_width+"px"},this.default_text=this.form_field.readAttribute("data-placeholder")?this.form_field.readAttribute("data-placeholder"):this.default_text_default,a=this.is_multiple?(new Element("div",c)).update(this.multi_temp.evaluate({"default":this.default_text})):(new Element("div",c)).update(this.single_temp.evaluate({"default":this.default_text})),this.form_field.hide().insert({after:a}),this.container=$(this.container_id),this.container.addClassName("chzn-container-"+(this.is_multiple?"multi":"single")),this.dropdown=this.container.down("div.chzn-drop"),d=this.container.getHeight(),e=this.f_width-b(this.dropdown),this.dropdown.setStyle({width:e+"px",top:d+"px"}),this.search_field=this.container.down("input"),this.search_results=this.container.down("ul.chzn-results"),this.search_field_scale(),this.search_no_results=this.container.down("li.no-results"),this.is_multiple?(this.search_choices=this.container.down("ul.chzn-choices"),this.search_container=this.container.down("li.search-field")):(this.search_container=this.container.down("div.chzn-search"),this.selected_item=this.container.down(".chzn-single"),f=e-b(this.search_container)-b(this.search_field),this.search_field.setStyle({width:f+"px"})),this.results_build();return this.set_tab_index()},a.prototype.register_observers=function(){this.container.observe("mousedown",d(function(a){return this.container_mousedown(a)},this)),this.container.observe("mouseup",d(function(a){return this.container_mouseup(a)},this)),this.container.observe("mouseenter",d(function(a){return this.mouse_enter(a)},this)),this.container.observe("mouseleave",d(function(a){return this.mouse_leave(a)},this)),this.search_results.observe("mouseup",d(function(a){return this.search_results_mouseup(a)},this)),this.search_results.observe("mouseover",d(function(a){return this.search_results_mouseover(a)},this)),this.search_results.observe("mouseout",d(function(a){return this.search_results_mouseout(a)},this)),this.form_field.observe("liszt:updated",d(function(a){return this.results_update_field(a)},this)),this.search_field.observe("blur",d(function(a){return this.input_blur(a)},this)),this.search_field.observe("keyup",d(function(a){return this.keyup_checker(a)},this)),this.search_field.observe("keydown",d(function(a){return this.keydown_checker(a)},this));if(this.is_multiple){this.search_choices.observe("click",d(function(a){return this.choices_click(a)},this));return this.search_field.observe("focus",d(function(a){return this.input_focus(a)},this))}},a.prototype.search_field_disabled=function(){this.is_disabled=this.form_field.disabled;if(this.is_disabled){this.container.addClassName("chzn-disabled"),this.search_field.disabled=!0,this.is_multiple||this.selected_item.stopObserving("focus",this.activate_action);return this.close_field()}this.container.removeClassName("chzn-disabled"),this.search_field.disabled=!1;if(!this.is_multiple)return this.selected_item.observe("focus",this.activate_action)},a.prototype.container_mousedown=function(a){var b;if(!this.is_disabled){b=a!=null?a.target.nodeName:null,a&&a.type==="mousedown"&&a.stop();if(!this.pending_destroy_click&&b!=="ABBR"){this.active_field?!this.is_multiple&&a&&(a.target===this.selected_item||a.target.up("a.chzn-single"))&&this.results_toggle():(this.is_multiple&&this.search_field.clear(),document.observe("click",this.click_test_action),this.results_show());return this.activate_field()}return this.pending_destroy_click=!1}},a.prototype.container_mouseup=function(a){if(a.target.nodeName==="ABBR")return this.results_reset(a)},a.prototype.mouse_enter=function(){return this.mouse_on_container=!0},a.prototype.mouse_leave=function(){return this.mouse_on_container=!1},a.prototype.input_focus=function(a){if(!this.active_field)return setTimeout(this.container_mousedown.bind(this),50)},a.prototype.input_blur=function(a){if(!this.mouse_on_container){this.active_field=!1;return setTimeout(this.blur_test.bind(this),100)}},a.prototype.blur_test=function(a){if(!this.active_field&&this.container.hasClassName("chzn-container-active"))return this.close_field()},a.prototype.close_field=function(){document.stopObserving("click",this.click_test_action),this.is_multiple||(this.selected_item.tabIndex=this.search_field.tabIndex,this.search_field.tabIndex=-1),this.active_field=!1,this.results_hide(),this.container.removeClassName("chzn-container-active"),this.winnow_results_clear(),this.clear_backstroke(),this.show_search_field_default();return this.search_field_scale()},a.prototype.activate_field=function(){!this.is_multiple&&!this.active_field&&(this.search_field.tabIndex=this.selected_item.tabIndex,this.selected_item.tabIndex=-1),this.container.addClassName("chzn-container-active"),this.active_field=!0,this.search_field.value=this.search_field.value;return this.search_field.focus()},a.prototype.test_active_click=function(a){return a.target.up("#"+this.container_id)?this.active_field=!0:this.close_field()},a.prototype.results_build=function(){var a,b,d,e,f,g;d=new Date,this.parsing=!0,this.results_data=c.SelectParser.select_to_array(this.form_field),this.is_multiple&&this.choices>0?(this.search_choices.select("li.search-choice").invoke("remove"),this.choices=0):this.is_multiple||this.selected_item.down("span").update(this.default_text),a="",g=this.results_data;for(e=0,f=g.length;e<f;e++)b=g[e],b.group?a+=this.result_add_group(b):b.empty||(a+=this.result_add_option(b),b.selected&&this.is_multiple?this.choice_build(b):b.selected&&!this.is_multiple&&this.selected_item.down("span").update(b.html));this.search_field_disabled(),this.show_search_field_default(),this.search_field_scale(),this.search_results.update(a);return this.parsing=!1},a.prototype.result_add_group=function(a){if(!a.disabled){a.dom_id=this.container_id+"_g_"+a.array_index;return'<li id="'+a.dom_id+'" class="group-result">'+a.label.escapeHTML()+"</li>"}return""},a.prototype.result_add_option=function(a){var b;if(!a.disabled){a.dom_id=this.container_id+"_o_"+a.array_index,b=a.selected&&this.is_multiple?[]:["active-result"],a.selected&&b.push("result-selected"),a.group_array_index!=null&&b.push("group-option");return'<li id="'+a.dom_id+'" class="'+b.join(" ")+'">'+a.html+"</li>"}return""},a.prototype.results_update_field=function(){this.result_clear_highlight(),this.result_single_selected=null;return this.results_build()},a.prototype.result_do_highlight=function(a){var b,c,d,e,f;this.result_clear_highlight(),this.result_highlight=a,this.result_highlight.addClassName("highlighted"),d=parseInt(this.search_results.getStyle("maxHeight"),10),f=this.search_results.scrollTop,e=d+f,c=this.result_highlight.positionedOffset().top,b=c+this.result_highlight.getHeight();if(b>=e)return this.search_results.scrollTop=b-d>0?b-d:0;if(c<f)return this.search_results.scrollTop=c},a.prototype.result_clear_highlight=function(){this.result_highlight&&this.result_highlight.removeClassName("highlighted");return this.result_highlight=null},a.prototype.results_toggle=function(){return this.results_showing?this.results_hide():this.results_show()},a.prototype.results_show=function(){var a;this.is_multiple||(this.selected_item.addClassName("chzn-single-with-drop"),this.result_single_selected&&this.result_do_highlight(this.result_single_selected)),a=this.is_multiple?this.container.getHeight():this.container.getHeight()-1,this.dropdown.setStyle({top:a+"px",left:0}),this.results_showing=!0,this.search_field.focus(),this.search_field.value=this.search_field.value;return this.winnow_results()},a.prototype.results_hide=function(){this.is_multiple||this.selected_item.removeClassName("chzn-single-with-drop"),this.result_clear_highlight(),this.dropdown.setStyle({left:"-9000px"});return this.results_showing=!1},a.prototype.set_tab_index=function(a){var b;if(this.form_field.tabIndex){b=this.form_field.tabIndex,this.form_field.tabIndex=-1;if(this.is_multiple)return this.search_field.tabIndex=b;this.selected_item.tabIndex=b;return this.search_field.tabIndex=-1}},a.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.value=this.default_text;return this.search_field.addClassName("default")}this.search_field.value="";return this.search_field.removeClassName("default")},a.prototype.search_results_mouseup=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b){this.result_highlight=b;return this.result_select(a)}},a.prototype.search_results_mouseover=function(a){var b;b=a.target.hasClassName("active-result")?a.target:a.target.up(".active-result");if(b)return this.result_do_highlight(b)},a.prototype.search_results_mouseout=function(a){if(a.target.hasClassName("active-result")||a.target.up(".active-result"))return this.result_clear_highlight()},a.prototype.choices_click=function(a){a.preventDefault();if(this.active_field&&!a.target.hasClassName("search-choice")&&!a.target.up(".search-choice")&&!this.results_showing)return this.results_show()},a.prototype.choice_build=function(a){var b,c;b=this.container_id+"_c_"+a.array_index,this.choices+=1,this.search_container.insert({before:this.choice_temp.evaluate({id:b,choice:a.html,position:a.array_index})}),c=$(b).down("a");return c.observe("click",d(function(a){return this.choice_destroy_link_click(a)},this))},a.prototype.choice_destroy_link_click=function(a){a.preventDefault();if(!this.is_disabled){this.pending_destroy_click=!0;return this.choice_destroy(a.target)}},a.prototype.choice_destroy=function(a){this.choices-=1,this.show_search_field_default(),this.is_multiple&&this.choices>0&&this.search_field.value.length<1&&this.results_hide(),this.result_deselect(a.readAttribute("rel"));return a.up("li").remove()},a.prototype.results_reset=function(a){this.form_field.options[0].selected=!0,this.selected_item.down("span").update(this.default_text),this.show_search_field_default(),a.target.remove();if(this.active_field)return this.results_hide()},a.prototype.result_select=function(a){var b,c,d;if(this.result_highlight){b=this.result_highlight,this.result_clear_highlight(),this.is_multiple?this.result_deactivate(b):(this.search_results.descendants(".result-selected").invoke("removeClassName","result-selected"),this.result_single_selected=b),b.addClassName("result-selected"),d=b.id.substr(b.id.lastIndexOf("_")+1),c=this.results_data[d],c.selected=!0,this.form_field.options[c.options_index].selected=!0,this.is_multiple?this.choice_build(c):(this.selected_item.down("span").update(c.html),this.allow_single_deselect&&this.selected_item.down("span").insert({after:"<abbr></abbr>"})),(!a.metaKey||!this.is_multiple)&&this.results_hide(),this.search_field.value="",typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()}},a.prototype.result_activate=function(a){return a.addClassName("active-result").show()},a.prototype.result_deactivate=function(a){return a.removeClassName("active-result").hide()},a.prototype.result_deselect=function(a){var b,c;c=this.results_data[a],c.selected=!1,this.form_field.options[c.options_index].selected=!1,b=$(this.container_id+"_o_"+a),b.removeClassName("result-selected").addClassName("active-result").show(),this.result_clear_highlight(),this.winnow_results(),typeof Event.simulate=="function"&&this.form_field.simulate("change");return this.search_field_scale()},a.prototype.results_search=function(a){return this.results_showing?this.winnow_results():this.results_show()},a.prototype.winnow_results=function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q;i=new Date,this.no_results_clear(),g=0,h=this.search_field.value===this.default_text?"":this.search_field.value.strip().escapeHTML(),e=new RegExp("^"+h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),l=new RegExp(h.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i"),q=this.results_data;for(m=0,o=q.length;m<o;m++){b=q[m];if(!b.disabled&&!b.empty)if(b.group)$(b.dom_id).hide();else if(!this.is_multiple||!b.selected){a=!1,f=b.dom_id;if(e.test(b.html))a=!0,g+=1;else if(b.html.indexOf(" ")>=0||b.html.indexOf("[")===0){d=b.html.replace(/\[|\]/g,"").split(" ");if(d.length)for(n=0,p=d.length;n<p;n++)c=d[n],e.test(c)&&(a=!0,g+=1)}a?(h.length?(j=b.html.search(l),k=b.html.substr(0,j+h.length)+"</em>"+b.html.substr(j+h.length),k=k.substr(0,j)+"<em>"+k.substr(j)):k=b.html,$(f).innerHTML!==k&&$(f).update(k),this.result_activate($(f)),b.group_array_index!=null&&$(this.results_data[b.group_array_index].dom_id).show()):($(f)===this.result_highlight&&this.result_clear_highlight(),this.result_deactivate($(f)))}}return g<1&&h.length?this.no_results(h):this.winnow_results_set_highlight()},a.prototype.winnow_results_clear=function(){var a,b,c,d,e;this.search_field.clear(),b=this.search_results.select("li"),e=[];for(c=0,d=b.length;c<d;c++)a=b[c],e.push(a.hasClassName("group-result")?a.show():!this.is_multiple||!a.hasClassName("result-selected")?this.result_activate(a):void 0);return e},a.prototype.winnow_results_set_highlight=function(){var a;if(!this.result_highlight){this.is_multiple||(a=this.search_results.down(".result-selected.active-result")),a==null&&(a=this.search_results.down(".active-result"));if(a!=null)return this.result_do_highlight(a)}},a.prototype.no_results=function(a){return this.search_results.insert(this.no_results_temp.evaluate({terms:a}))},a.prototype.no_results_clear=function(){var a,b;a=null,b=[];while(a=this.search_results.down(".no-results"))b.push(a.remove());return b},a.prototype.keydown_arrow=function(){var a,b,c;a=this.search_results.select("li.active-result");if(a.length){this.result_highlight?this.results_showing&&(c=this.result_highlight.nextSiblings(),b=c.intersect(a),b.length&&this.result_do_highlight(b.first())):this.result_do_highlight(a.first());if(!this.results_showing)return this.results_show()}},a.prototype.keyup_arrow=function(){var a,b,c;if(!this.results_showing&&!this.is_multiple)return this.results_show();if(this.result_highlight){c=this.result_highlight.previousSiblings(),a=this.search_results.select("li.active-result"),b=c.intersect(a);if(b.length)return this.result_do_highlight(b.first());this.choices>0&&this.results_hide();return this.result_clear_highlight()}},a.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.down("a"));return this.clear_backstroke()}this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClassName("search-choice-focus")},a.prototype.clear_backstroke=function(){this.pending_backstroke&&this.pending_backstroke.removeClassName("search-choice-focus");return this.pending_backstroke=null},a.prototype.keyup_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale();switch(b){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0)return this.keydown_backstroke();if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search()}break;case 13:a.preventDefault();if(this.results_showing)return this.result_select(a);break;case 27:if(this.results_showing)return this.results_hide();break;case 9:case 38:case 40:case 16:case 91:case 17:break;default:return this.results_search()}},a.prototype.keydown_checker=function(a){var b,c;b=(c=a.which)!=null?c:a.keyCode,this.search_field_scale(),b!==8&&this.pending_backstroke&&this.clear_backstroke();switch(b){case 8:return this.backstroke_length=this.search_field.value.length;case 9:return this.mouse_on_container=!1;case 13:return a.preventDefault();case 38:a.preventDefault();return this.keyup_arrow();case 40:return this.keydown_arrow()}},a.prototype.search_field_scale=function(){var a,b,c,d,e,f,g,h,i;if(this.is_multiple){c=0,g=0,e="position:absolute; left: -1000px; top: -1000px; display:none;",f=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(h=0,i=f.length;h<i;h++)d=f[h],e+=d+":"+this.search_field.getStyle(d)+";";b=(new Element("div",{style:e})).update(this.search_field.value.escapeHTML()),document.body.appendChild(b),g=Element.measure(b,"width")+25,b.remove(),g>this.f_width-10&&(g=this.f_width-10),this.search_field.setStyle({width:g+"px"}),a=this.container.getHeight();return this.dropdown.setStyle({top:a+"px"})}};return a}(),c.Chosen=a,Prototype.Browser.IE&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)&&(Prototype.BrowserFeatures.Version=new Number(RegExp.$1)),b=function(a){var b,c;b=new Element.Layout(a);return c=b.get("border-left")+b.get("border-right")+b.get("padding-left")+b.get("padding-right")},c.get_side_border_padding=b}).call(this),function(){var a;a=function(){function a(){this.options_index=0,this.parsed=[]}a.prototype.add_node=function(a){return a.nodeName==="OPTGROUP"?this.add_group(a):this.add_option(a)},a.prototype.add_group=function(a){var b,c,d,e,f,g;b=this.parsed.length,this.parsed.push({array_index:b,group:!0,label:a.label,children:0,disabled:a.disabled}),f=a.childNodes,g=[];for(d=0,e=f.length;d<e;d++)c=f[d],g.push(this.add_option(c,b,a.disabled));return g},a.prototype.add_option=function(a,b,c){if(a.nodeName==="OPTION"){a.text!==""?(b!=null&&(this.parsed[b].children+=1),this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:a.value,text:a.text,html:a.innerHTML,selected:a.selected,disabled:c===!0?c:a.disabled,group_array_index:b})):this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:!0});return this.options_index+=1}};return a}(),a.select_to_array=function(b){var c,d,e,f,g;d=new a,g=b.childNodes;for(e=0,f=g.length;e<f;e++)c=g[e],d.add_node(c);return d.parsed},this.SelectParser=a}.call(this)
\ No newline at end of file
diff --git a/coffee/chosen.jquery.coffee b/coffee/chosen.jquery.coffee
index 3b39b17..d35272b 100644
--- a/coffee/chosen.jquery.coffee
+++ b/coffee/chosen.jquery.coffee
@@ -37,7 +37,7 @@ class Chosen
     @results_showing = false
     @result_highlighted = null
     @result_single_selected = null
-    @allow_single_deselect = @options.allow_single_deselect || false
+    @allow_single_deselect = if @options.allow_single_deselect? and @form_field.options[0].text == "" then @options.allow_single_deselect else false
     @choices = 0
     @results_none_found = @options.no_results_text or "No results match"
 
diff --git a/coffee/chosen.proto.coffee b/coffee/chosen.proto.coffee
index 3c728e4..9f9f7ae 100644
--- a/coffee/chosen.proto.coffee
+++ b/coffee/chosen.proto.coffee
@@ -29,7 +29,7 @@ class Chosen
     @results_showing = false
     @result_highlighted = null
     @result_single_selected = null
-    @allow_single_deselect = @options.allow_single_deselect || false
+    @allow_single_deselect = if @options.allow_single_deselect? and @form_field.options[0].text == "" then @options.allow_single_deselect else false
     @choices = 0
 
     @results_none_found = @options.no_results_text or "No results match"