diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index 6b3e9d6..9aa10e1 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -700,19 +700,6 @@
       Prototype.BrowserFeatures['Version'] = new Number(RegExp.$1);
     }
   }
-  document.observe('dom:loaded', function(evt) {
-    var select, selects, _i, _len, _results;
-    if (Prototype.Browser.IE && (Prototype.BrowserFeatures['Version'] === 6 || Prototype.BrowserFeatures['Version'] === 7)) {
-      return;
-    }
-    selects = $$(".chzn-select");
-    _results = [];
-    for (_i = 0, _len = selects.length; _i < _len; _i++) {
-      select = selects[_i];
-      _results.push(new Chosen(select));
-    }
-    return _results;
-  });
   get_side_border_padding = function(elmt) {
     var layout, side_border_padding;
     layout = new Element.Layout(elmt);
diff --git a/chosen/chosen.proto.min.js b/chosen/chosen.proto.min.js
index 2f71f62..0114f99 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.options=b||{},this.set_default_values(),this.form_field=a,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.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))}return this.selected_item.observe("focus",d(function(a){return this.activate_field(a)},this))},a.prototype.container_mousedown=function(a){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.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(),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(),b.addClassName("result-selected"),this.is_multiple?this.result_deactivate(b):this.result_single_selected=b,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")),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)),document.observe("dom:loaded",function(b){var c,d,e,f,g;if(!Prototype.Browser.IE||Prototype.BrowserFeatures.Version!==6&&Prototype.BrowserFeatures.Version!==7){d=$$(".chzn-select"),g=[];for(e=0,f=d.length;e<f;e++)c=d[e],g.push(new a(c));return g}return}),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.options=b||{},this.set_default_values(),this.form_field=a,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.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))}return this.selected_item.observe("focus",d(function(a){return this.activate_field(a)},this))},a.prototype.container_mousedown=function(a){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.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(),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(),b.addClassName("result-selected"),this.is_multiple?this.result_deactivate(b):this.result_single_selected=b,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")),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.proto.coffee b/coffee/chosen.proto.coffee
index 1d8e3e2..840e466 100644
--- a/coffee/chosen.proto.coffee
+++ b/coffee/chosen.proto.coffee
@@ -584,13 +584,6 @@ if Prototype.Browser.IE
     Prototype.BrowserFeatures['Version'] = new Number(RegExp.$1);
 
 
-document.observe 'dom:loaded', (evt) ->
-  # Do no harm and return as soon as possible for unsupported browsers, namely IE6 and IE7
-  return if Prototype.Browser.IE and (Prototype.BrowserFeatures['Version'] is 6 or Prototype.BrowserFeatures['Version'] is 7)
-  
-  selects = $$(".chzn-select")
-  new Chosen select for select in selects
-
 get_side_border_padding = (elmt) ->
   layout = new Element.Layout(elmt)
   side_border_padding = layout.get("border-left") + layout.get("border-right") + layout.get("padding-left") + layout.get("padding-right")
diff --git a/example.html b/example.html
index a42de5c..4225274 100644
--- a/example.html
+++ b/example.html
@@ -1263,11 +1263,26 @@
     <p>Using Chosen is easy as can be.</p>
     <ol>
       <li>Download the plugin and copy the chosen files to your app.</li>
-      <li>Add the class <em>chzn-select</em> to any select box.</li>
+      <li>Activate the plugin by creating a new instance of Chosen: New Chosen(<em>some_form_field</em>);</li>
       <li><a href="http://youtu.be/pS-RsIzb78U?t=57s">Disco</a>.</li>
     </ol>
     
   </div>
   <script src="https://ajax.googleapis.com/ajax/libs/prototype/1.7.0.0/prototype.js" type="text/javascript"></script>
   <script src="chosen/chosen.proto.js" type="text/javascript"></script>
+  <script type="text/javascript">
+  document.observe('dom:loaded', function(evt) {
+    var select, selects, _i, _len, _results;
+    if (Prototype.Browser.IE && (Prototype.BrowserFeatures['Version'] === 6 || Prototype.BrowserFeatures['Version'] === 7)) {
+      return;
+    }
+    selects = $$(".chzn-select");
+    _results = [];
+    for (_i = 0, _len = selects.length; _i < _len; _i++) {
+      select = selects[_i];
+      _results.push(new Chosen(select));
+    }
+    return _results;
+  });
+  </script>
 </body>