diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index f5ce84df..288732fd 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -79,3 +79,13 @@ function showDiff(link) {
   $(link).next('table').show();
   $(link).remove();
 }
+
+(function($){
+    var _chosen = $.fn.chosen;
+    $.fn.extend({
+        chosen: function(options) {
+            var default_options = {'search_contains' : 'true'};
+            $.extend(default_options, options);
+            return _chosen.apply(this, [default_options]);
+    }})
+})(jQuery);
diff --git a/vendor/assets/javascripts/chosen.js b/vendor/assets/javascripts/chosen.js
index 34918fe9..d1edb087 100644
--- a/vendor/assets/javascripts/chosen.js
+++ b/vendor/assets/javascripts/chosen.js
@@ -1,7 +1,7 @@
 // Chosen, a Select Box Enhancer for jQuery and Protoype
 // by Patrick Filler for Harvest, http://getharvest.com
 // 
-// Version 0.9.5
+// Version 0.9.8
 // Full source at https://github.com/harvesthq/chosen
 // Copyright (c) 2011 Harvest http://getharvest.com
 
@@ -9,11 +9,14 @@
 // This file is generated by `cake build`, do not edit it by hand.
 (function() {
   var SelectParser;
+
   SelectParser = (function() {
+
     function SelectParser() {
       this.options_index = 0;
       this.parsed = [];
     }
+
     SelectParser.prototype.add_node = function(child) {
       if (child.nodeName === "OPTGROUP") {
         return this.add_group(child);
@@ -21,6 +24,7 @@
         return this.add_option(child);
       }
     };
+
     SelectParser.prototype.add_group = function(group) {
       var group_position, option, _i, _len, _ref, _results;
       group_position = this.parsed.length;
@@ -39,12 +43,11 @@
       }
       return _results;
     };
+
     SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
       if (option.nodeName === "OPTION") {
         if (option.text !== "") {
-          if (group_position != null) {
-            this.parsed[group_position].children += 1;
-          }
+          if (group_position != null) this.parsed[group_position].children += 1;
           this.parsed.push({
             array_index: this.parsed.length,
             options_index: this.options_index,
@@ -67,8 +70,11 @@
         return this.options_index += 1;
       }
     };
+
     return SelectParser;
+
   })();
+
   SelectParser.select_to_array = function(select) {
     var child, parser, _i, _len, _ref;
     parser = new SelectParser();
@@ -79,17 +85,23 @@
     }
     return parser.parsed;
   };
+
   this.SelectParser = SelectParser;
+
 }).call(this);
+
+/*
+Chosen source: generate output using 'cake build'
+Copyright (c) 2011 by Harvest
+*/
+
 (function() {
-  /*
-  Chosen source: generate output using 'cake build'
-  Copyright (c) 2011 by Harvest
-  */
   var AbstractChosen, root;
-  var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
+
   root = this;
+
   AbstractChosen = (function() {
+
     function AbstractChosen(form_field, options) {
       this.form_field = form_field;
       this.options = options != null ? options : {};
@@ -101,69 +113,75 @@
       this.register_observers();
       this.finish_setup();
     }
+
     AbstractChosen.prototype.set_default_values = function() {
-      this.click_test_action = __bind(function(evt) {
-        return this.test_active_click(evt);
-      }, this);
-      this.activate_action = __bind(function(evt) {
-        return this.activate_field(evt);
-      }, this);
+      var _this = this;
+      this.click_test_action = function(evt) {
+        return _this.test_active_click(evt);
+      };
+      this.activate_action = function(evt) {
+        return _this.activate_field(evt);
+      };
       this.active_field = false;
       this.mouse_on_container = false;
       this.results_showing = false;
       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 : false;
+      this.allow_single_deselect = (this.options.allow_single_deselect != null) && (this.form_field.options[0] != null) && this.form_field.options[0].text === "" ? this.options.allow_single_deselect : false;
       this.disable_search_threshold = this.options.disable_search_threshold || 0;
+      this.search_contains = this.options.search_contains || false;
       this.choices = 0;
       return this.results_none_found = this.options.no_results_text || "No results match";
     };
+
     AbstractChosen.prototype.mouse_enter = function() {
       return this.mouse_on_container = true;
     };
+
     AbstractChosen.prototype.mouse_leave = function() {
       return this.mouse_on_container = false;
     };
+
     AbstractChosen.prototype.input_focus = function(evt) {
+      var _this = this;
       if (!this.active_field) {
-        return setTimeout((__bind(function() {
-          return this.container_mousedown();
-        }, this)), 50);
+        return setTimeout((function() {
+          return _this.container_mousedown();
+        }), 50);
       }
     };
+
     AbstractChosen.prototype.input_blur = function(evt) {
+      var _this = this;
       if (!this.mouse_on_container) {
         this.active_field = false;
-        return setTimeout((__bind(function() {
-          return this.blur_test();
-        }, this)), 100);
+        return setTimeout((function() {
+          return _this.blur_test();
+        }), 100);
       }
     };
+
     AbstractChosen.prototype.result_add_option = function(option) {
       var classes, style;
       if (!option.disabled) {
         option.dom_id = this.container_id + "_o_" + option.array_index;
         classes = option.selected && this.is_multiple ? [] : ["active-result"];
-        if (option.selected) {
-          classes.push("result-selected");
-        }
-        if (option.group_array_index != null) {
-          classes.push("group-option");
-        }
-        if (option.classes !== "") {
-          classes.push(option.classes);
-        }
+        if (option.selected) classes.push("result-selected");
+        if (option.group_array_index != null) classes.push("group-option");
+        if (option.classes !== "") classes.push(option.classes);
         style = option.style.cssText !== "" ? " style=\"" + option.style + "\"" : "";
         return '<li id="' + option.dom_id + '" class="' + classes.join(' ') + '"' + style + '>' + option.html + '</li>';
       } else {
         return "";
       }
     };
+
     AbstractChosen.prototype.results_update_field = function() {
       this.result_clear_highlight();
       this.result_single_selected = null;
       return this.results_build();
     };
+
     AbstractChosen.prototype.results_toggle = function() {
       if (this.results_showing) {
         return this.results_hide();
@@ -171,6 +189,7 @@
         return this.results_show();
       }
     };
+
     AbstractChosen.prototype.results_search = function(evt) {
       if (this.results_showing) {
         return this.winnow_results();
@@ -178,6 +197,7 @@
         return this.results_show();
       }
     };
+
     AbstractChosen.prototype.keyup_checker = function(evt) {
       var stroke, _ref;
       stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
@@ -193,15 +213,11 @@
           break;
         case 13:
           evt.preventDefault();
-          if (this.results_showing) {
-            return this.result_select(evt);
-          }
+          if (this.results_showing) return this.result_select(evt);
           break;
         case 27:
-          if (this.results_showing) {
-            return this.results_hide();
-          }
-          break;
+          if (this.results_showing) this.results_hide();
+          return true;
         case 9:
         case 38:
         case 40:
@@ -213,62 +229,71 @@
           return this.results_search();
       }
     };
+
     AbstractChosen.prototype.generate_field_id = function() {
       var new_id;
       new_id = this.generate_random_id();
       this.form_field.id = new_id;
       return new_id;
     };
+
     AbstractChosen.prototype.generate_random_char = function() {
       var chars, newchar, rand;
       chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ";
       rand = Math.floor(Math.random() * chars.length);
       return newchar = chars.substring(rand, rand + 1);
     };
+
     return AbstractChosen;
+
   })();
+
   root.AbstractChosen = AbstractChosen;
+
 }).call(this);
+
+/*
+Chosen source: generate output using 'cake build'
+Copyright (c) 2011 by Harvest
+*/
+
 (function() {
-  /*
-  Chosen source: generate output using 'cake build'
-  Copyright (c) 2011 by Harvest
-  */
-  var $, Chosen, get_side_border_padding, root;
-  var __hasProp = Object.prototype.hasOwnProperty, __extends = function(child, parent) {
-    for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; }
-    function ctor() { this.constructor = child; }
-    ctor.prototype = parent.prototype;
-    child.prototype = new ctor;
-    child.__super__ = parent.prototype;
-    return child;
-  }, __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
+  var $, Chosen, get_side_border_padding, root,
+    __hasProp = Object.prototype.hasOwnProperty,
+    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; };
+
   root = this;
+
   $ = jQuery;
+
   $.fn.extend({
     chosen: function(options) {
       if ($.browser.msie && ($.browser.version === "6.0" || $.browser.version === "7.0")) {
         return this;
       }
       return $(this).each(function(input_field) {
-        if (!($(this)).hasClass("chzn-done")) {
-          return new Chosen(this, options);
-        }
+        if (!($(this)).hasClass("chzn-done")) return new Chosen(this, options);
       });
     }
   });
-  Chosen = (function() {
-    __extends(Chosen, AbstractChosen);
+
+  Chosen = (function(_super) {
+
+    __extends(Chosen, _super);
+
     function Chosen() {
       Chosen.__super__.constructor.apply(this, arguments);
     }
+
     Chosen.prototype.setup = function() {
       this.form_field_jq = $(this.form_field);
       return this.is_rtl = this.form_field_jq.hasClass("chzn-rtl");
     };
+
     Chosen.prototype.finish_setup = function() {
       return this.form_field_jq.addClass("chzn-done");
     };
+
     Chosen.prototype.set_up_html = function() {
       var container_div, dd_top, dd_width, sf_width;
       this.container_id = this.form_field.id.length ? this.form_field.id.replace(/(:|\.)/g, '_') : this.generate_field_id();
@@ -283,7 +308,7 @@
       if (this.is_multiple) {
         container_div.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>');
       } else {
-        container_div.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>');
+        container_div.html('<a href="javascript:void(0)" class="chzn-single chzn-default"><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(container_div);
       this.container = $('#' + this.container_id);
@@ -316,49 +341,56 @@
         chosen: this
       });
     };
+
     Chosen.prototype.register_observers = function() {
-      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));
-      this.container.mouseleave(__bind(function(evt) {
-        return this.mouse_leave(evt);
-      }, this));
-      this.search_results.mouseup(__bind(function(evt) {
-        return this.search_results_mouseup(evt);
-      }, this));
-      this.search_results.mouseover(__bind(function(evt) {
-        return this.search_results_mouseover(evt);
-      }, this));
-      this.search_results.mouseout(__bind(function(evt) {
-        return this.search_results_mouseout(evt);
-      }, this));
-      this.form_field_jq.bind("liszt:updated", __bind(function(evt) {
-        return this.results_update_field(evt);
-      }, this));
-      this.search_field.blur(__bind(function(evt) {
-        return this.input_blur(evt);
-      }, this));
-      this.search_field.keyup(__bind(function(evt) {
-        return this.keyup_checker(evt);
-      }, this));
-      this.search_field.keydown(__bind(function(evt) {
-        return this.keydown_checker(evt);
-      }, this));
+      var _this = this;
+      this.container.mousedown(function(evt) {
+        return _this.container_mousedown(evt);
+      });
+      this.container.mouseup(function(evt) {
+        return _this.container_mouseup(evt);
+      });
+      this.container.mouseenter(function(evt) {
+        return _this.mouse_enter(evt);
+      });
+      this.container.mouseleave(function(evt) {
+        return _this.mouse_leave(evt);
+      });
+      this.search_results.mouseup(function(evt) {
+        return _this.search_results_mouseup(evt);
+      });
+      this.search_results.mouseover(function(evt) {
+        return _this.search_results_mouseover(evt);
+      });
+      this.search_results.mouseout(function(evt) {
+        return _this.search_results_mouseout(evt);
+      });
+      this.form_field_jq.bind("liszt:updated", function(evt) {
+        return _this.results_update_field(evt);
+      });
+      this.search_field.blur(function(evt) {
+        return _this.input_blur(evt);
+      });
+      this.search_field.keyup(function(evt) {
+        return _this.keyup_checker(evt);
+      });
+      this.search_field.keydown(function(evt) {
+        return _this.keydown_checker(evt);
+      });
       if (this.is_multiple) {
-        this.search_choices.click(__bind(function(evt) {
-          return this.choices_click(evt);
-        }, this));
-        return this.search_field.focus(__bind(function(evt) {
-          return this.input_focus(evt);
-        }, this));
+        this.search_choices.click(function(evt) {
+          return _this.choices_click(evt);
+        });
+        return this.search_field.focus(function(evt) {
+          return _this.input_focus(evt);
+        });
+      } else {
+        return this.container.click(function(evt) {
+          return evt.preventDefault();
+        });
       }
     };
+
     Chosen.prototype.search_field_disabled = function() {
       this.is_disabled = this.form_field_jq[0].disabled;
       if (this.is_disabled) {
@@ -376,21 +408,20 @@
         }
       }
     };
+
     Chosen.prototype.container_mousedown = function(evt) {
       var target_closelink;
       if (!this.is_disabled) {
         target_closelink = evt != null ? ($(evt.target)).hasClass("search-choice-close") : false;
-        if (evt && evt.type === "mousedown") {
+        if (evt && evt.type === "mousedown" && !this.results_showing) {
           evt.stopPropagation();
         }
         if (!this.pending_destroy_click && !target_closelink) {
           if (!this.active_field) {
-            if (this.is_multiple) {
-              this.search_field.val("");
-            }
+            if (this.is_multiple) this.search_field.val("");
             $(document).click(this.click_test_action);
             this.results_show();
-          } else if (!this.is_multiple && evt && ($(evt.target) === this.selected_item || $(evt.target).parents("a.chzn-single").length)) {
+          } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chzn-single").length)) {
             evt.preventDefault();
             this.results_toggle();
           }
@@ -400,16 +431,17 @@
         }
       }
     };
+
     Chosen.prototype.container_mouseup = function(evt) {
-      if (evt.target.nodeName === "ABBR") {
-        return this.results_reset(evt);
-      }
+      if (evt.target.nodeName === "ABBR") return this.results_reset(evt);
     };
+
     Chosen.prototype.blur_test = function(evt) {
       if (!this.active_field && this.container.hasClass("chzn-container-active")) {
         return this.close_field();
       }
     };
+
     Chosen.prototype.close_field = function() {
       $(document).unbind("click", this.click_test_action);
       if (!this.is_multiple) {
@@ -424,6 +456,7 @@
       this.show_search_field_default();
       return this.search_field_scale();
     };
+
     Chosen.prototype.activate_field = function() {
       if (!this.is_multiple && !this.active_field) {
         this.search_field.attr("tabindex", this.selected_item.attr("tabindex"));
@@ -434,6 +467,7 @@
       this.search_field.val(this.search_field.val());
       return this.search_field.focus();
     };
+
     Chosen.prototype.test_active_click = function(evt) {
       if ($(evt.target).parents('#' + this.container_id).length) {
         return this.active_field = true;
@@ -441,9 +475,9 @@
         return this.close_field();
       }
     };
+
     Chosen.prototype.results_build = function() {
-      var content, data, startTime, _i, _len, _ref;
-      startTime = new Date();
+      var content, data, _i, _len, _ref;
       this.parsing = true;
       this.results_data = root.SelectParser.select_to_array(this.form_field);
       if (this.is_multiple && this.choices > 0) {
@@ -468,10 +502,8 @@
           if (data.selected && this.is_multiple) {
             this.choice_build(data);
           } else if (data.selected && !this.is_multiple) {
-            this.selected_item.find("span").text(data.text);
-            if (this.allow_single_deselect) {
-              this.single_deselect_control_build();
-            }
+            this.selected_item.removeClass("chzn-default").find("span").text(data.text);
+            if (this.allow_single_deselect) this.single_deselect_control_build();
           }
         }
       }
@@ -481,6 +513,7 @@
       this.search_results.html(content);
       return this.parsing = false;
     };
+
     Chosen.prototype.result_add_group = function(group) {
       if (!group.disabled) {
         group.dom_id = this.container_id + "_g_" + group.array_index;
@@ -489,6 +522,7 @@
         return "";
       }
     };
+
     Chosen.prototype.result_do_highlight = function(el) {
       var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
       if (el.length) {
@@ -507,12 +541,12 @@
         }
       }
     };
+
     Chosen.prototype.result_clear_highlight = function() {
-      if (this.result_highlight) {
-        this.result_highlight.removeClass("highlighted");
-      }
+      if (this.result_highlight) this.result_highlight.removeClass("highlighted");
       return this.result_highlight = null;
     };
+
     Chosen.prototype.results_show = function() {
       var dd_top;
       if (!this.is_multiple) {
@@ -531,6 +565,7 @@
       this.search_field.val(this.search_field.val());
       return this.winnow_results();
     };
+
     Chosen.prototype.results_hide = function() {
       if (!this.is_multiple) {
         this.selected_item.removeClass("chzn-single-with-drop");
@@ -541,6 +576,7 @@
       });
       return this.results_showing = false;
     };
+
     Chosen.prototype.set_tab_index = function(el) {
       var ti;
       if (this.form_field_jq.attr("tabindex")) {
@@ -554,6 +590,7 @@
         }
       }
     };
+
     Chosen.prototype.show_search_field_default = function() {
       if (this.is_multiple && this.choices < 1 && !this.active_field) {
         this.search_field.val(this.default_text);
@@ -563,6 +600,7 @@
         return this.search_field.removeClass("default");
       }
     };
+
     Chosen.prototype.search_results_mouseup = function(evt) {
       var target;
       target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
@@ -571,34 +609,38 @@
         return this.result_select(evt);
       }
     };
+
     Chosen.prototype.search_results_mouseover = function(evt) {
       var target;
       target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
-      if (target) {
-        return this.result_do_highlight(target);
-      }
+      if (target) return this.result_do_highlight(target);
     };
+
     Chosen.prototype.search_results_mouseout = function(evt) {
       if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
         return this.result_clear_highlight();
       }
     };
+
     Chosen.prototype.choices_click = function(evt) {
       evt.preventDefault();
       if (this.active_field && !($(evt.target).hasClass("search-choice" || $(evt.target).parents('.search-choice').first)) && !this.results_showing) {
         return this.results_show();
       }
     };
+
     Chosen.prototype.choice_build = function(item) {
-      var choice_id, link;
+      var choice_id, link,
+        _this = this;
       choice_id = this.container_id + "_c_" + item.array_index;
       this.choices += 1;
       this.search_container.before('<li class="search-choice" id="' + choice_id + '"><span>' + item.html + '</span><a href="javascript:void(0)" class="search-choice-close" rel="' + item.array_index + '"></a></li>');
       link = $('#' + choice_id).find("a").first();
-      return link.click(__bind(function(evt) {
-        return this.choice_destroy_link_click(evt);
-      }, this));
+      return link.click(function(evt) {
+        return _this.choice_destroy_link_click(evt);
+      });
     };
+
     Chosen.prototype.choice_destroy_link_click = function(evt) {
       evt.preventDefault();
       if (!this.is_disabled) {
@@ -608,6 +650,7 @@
         return evt.stopPropagation;
       }
     };
+
     Chosen.prototype.choice_destroy = function(link) {
       this.choices -= 1;
       this.show_search_field_default();
@@ -617,16 +660,17 @@
       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);
+      if (!this.is_multiple) this.selected_item.addClass("chzn-default");
       this.show_search_field_default();
       $(evt.target).remove();
       this.form_field_jq.trigger("change");
-      if (this.active_field) {
-        return this.results_hide();
-      }
+      if (this.active_field) return this.results_hide();
     };
+
     Chosen.prototype.result_select = function(evt) {
       var high, high_id, item, position;
       if (this.result_highlight) {
@@ -638,6 +682,7 @@
         } else {
           this.search_results.find(".result-selected").removeClass("result-selected");
           this.result_single_selected = high;
+          this.selected_item.removeClass("chzn-default");
         }
         high.addClass("result-selected");
         position = high_id.substr(high_id.lastIndexOf("_") + 1);
@@ -648,24 +693,23 @@
           this.choice_build(item);
         } else {
           this.selected_item.find("span").first().text(item.text);
-          if (this.allow_single_deselect) {
-            this.single_deselect_control_build();
-          }
-        }
-        if (!(evt.metaKey && this.is_multiple)) {
-          this.results_hide();
+          if (this.allow_single_deselect) this.single_deselect_control_build();
         }
+        if (!(evt.metaKey && this.is_multiple)) this.results_hide();
         this.search_field.val("");
         this.form_field_jq.trigger("change");
         return this.search_field_scale();
       }
     };
+
     Chosen.prototype.result_activate = function(el) {
       return el.addClass("active-result");
     };
+
     Chosen.prototype.result_deactivate = function(el) {
       return el.removeClass("active-result");
     };
+
     Chosen.prototype.result_deselect = function(pos) {
       var result, result_data;
       result_data = this.results_data[pos];
@@ -678,28 +722,31 @@
       this.form_field_jq.trigger("change");
       return this.search_field_scale();
     };
+
     Chosen.prototype.single_deselect_control_build = function() {
       if (this.allow_single_deselect && this.selected_item.find("abbr").length < 1) {
         return this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
       }
     };
+
     Chosen.prototype.winnow_results = function() {
-      var found, option, part, parts, regex, result_id, results, searchText, startTime, startpos, text, zregex, _i, _j, _len, _len2, _ref;
-      startTime = new Date();
+      var found, option, part, parts, regex, regexAnchor, result, result_id, results, searchText, startpos, text, zregex, _i, _j, _len, _len2, _ref;
       this.no_results_clear();
       results = 0;
       searchText = this.search_field.val() === this.default_text ? "" : $('<div/>').text($.trim(this.search_field.val())).html();
-      regex = new RegExp('^' + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
+      regexAnchor = this.search_contains ? "" : "^";
+      regex = new RegExp(regexAnchor + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
       zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
       _ref = this.results_data;
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
         option = _ref[_i];
         if (!option.disabled && !option.empty) {
           if (option.group) {
-            $('#' + option.dom_id).hide();
+            $('#' + option.dom_id).css('display', 'none');
           } else if (!(this.is_multiple && option.selected)) {
             found = false;
             result_id = option.dom_id;
+            result = $("#" + result_id);
             if (regex.test(option.html)) {
               found = true;
               results += 1;
@@ -723,18 +770,16 @@
               } else {
                 text = option.html;
               }
-              if ($("#" + result_id).html !== text) {
-                $("#" + result_id).html(text);
-              }
-              this.result_activate($("#" + result_id));
+              result.html(text);
+              this.result_activate(result);
               if (option.group_array_index != null) {
-                $("#" + this.results_data[option.group_array_index].dom_id).show();
+                $("#" + this.results_data[option.group_array_index].dom_id).css('display', 'list-item');
               }
             } else {
               if (this.result_highlight && result_id === this.result_highlight.attr('id')) {
                 this.result_clear_highlight();
               }
-              this.result_deactivate($("#" + result_id));
+              this.result_deactivate(result);
             }
           }
         }
@@ -745,6 +790,7 @@
         return this.winnow_results_set_highlight();
       }
     };
+
     Chosen.prototype.winnow_results_clear = function() {
       var li, lis, _i, _len, _results;
       this.search_field.val("");
@@ -753,46 +799,49 @@
       for (_i = 0, _len = lis.length; _i < _len; _i++) {
         li = lis[_i];
         li = $(li);
-        _results.push(li.hasClass("group-result") ? li.show() : !this.is_multiple || !li.hasClass("result-selected") ? this.result_activate(li) : void 0);
+        if (li.hasClass("group-result")) {
+          _results.push(li.css('display', 'auto'));
+        } else if (!this.is_multiple || !li.hasClass("result-selected")) {
+          _results.push(this.result_activate(li));
+        } else {
+          _results.push(void 0);
+        }
       }
       return _results;
     };
+
     Chosen.prototype.winnow_results_set_highlight = function() {
       var do_high, selected_results;
       if (!this.result_highlight) {
         selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
         do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
-        if (do_high != null) {
-          return this.result_do_highlight(do_high);
-        }
+        if (do_high != null) return this.result_do_highlight(do_high);
       }
     };
+
     Chosen.prototype.no_results = function(terms) {
       var no_results_html;
       no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');
       no_results_html.find("span").first().html(terms);
       return this.search_results.append(no_results_html);
     };
+
     Chosen.prototype.no_results_clear = function() {
       return this.search_results.find(".no-results").remove();
     };
+
     Chosen.prototype.keydown_arrow = function() {
       var first_active, next_sib;
       if (!this.result_highlight) {
         first_active = this.search_results.find("li.active-result").first();
-        if (first_active) {
-          this.result_do_highlight($(first_active));
-        }
+        if (first_active) this.result_do_highlight($(first_active));
       } else if (this.results_showing) {
         next_sib = this.result_highlight.nextAll("li.active-result").first();
-        if (next_sib) {
-          this.result_do_highlight(next_sib);
-        }
-      }
-      if (!this.results_showing) {
-        return this.results_show();
+        if (next_sib) this.result_do_highlight(next_sib);
       }
+      if (!this.results_showing) return this.results_show();
     };
+
     Chosen.prototype.keyup_arrow = function() {
       var prev_sibs;
       if (!this.results_showing && !this.is_multiple) {
@@ -802,13 +851,12 @@
         if (prev_sibs.length) {
           return this.result_do_highlight(prev_sibs.first());
         } else {
-          if (this.choices > 0) {
-            this.results_hide();
-          }
+          if (this.choices > 0) this.results_hide();
           return this.result_clear_highlight();
         }
       }
     };
+
     Chosen.prototype.keydown_backstroke = function() {
       if (this.pending_backstroke) {
         this.choice_destroy(this.pending_backstroke.find("a").first());
@@ -818,27 +866,25 @@
         return this.pending_backstroke.addClass("search-choice-focus");
       }
     };
+
     Chosen.prototype.clear_backstroke = function() {
       if (this.pending_backstroke) {
         this.pending_backstroke.removeClass("search-choice-focus");
       }
       return this.pending_backstroke = null;
     };
+
     Chosen.prototype.keydown_checker = function(evt) {
       var stroke, _ref;
       stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
       this.search_field_scale();
-      if (stroke !== 8 && this.pending_backstroke) {
-        this.clear_backstroke();
-      }
+      if (stroke !== 8 && this.pending_backstroke) this.clear_backstroke();
       switch (stroke) {
         case 8:
           this.backstroke_length = this.search_field.val().length;
           break;
         case 9:
-          if (this.results_showing && !this.is_multiple) {
-            this.result_select(evt);
-          }
+          if (this.results_showing && !this.is_multiple) this.result_select(evt);
           this.mouse_on_container = false;
           break;
         case 13:
@@ -853,6 +899,7 @@
           break;
       }
     };
+
     Chosen.prototype.search_field_scale = function() {
       var dd_top, div, h, style, style_block, styles, w, _i, _len;
       if (this.is_multiple) {
@@ -871,9 +918,7 @@
         $('body').append(div);
         w = div.width() + 25;
         div.remove();
-        if (w > this.f_width - 10) {
-          w = this.f_width - 10;
-        }
+        if (w > this.f_width - 10) w = this.f_width - 10;
         this.search_field.css({
           'width': w + 'px'
         });
@@ -883,6 +928,7 @@
         });
       }
     };
+
     Chosen.prototype.generate_random_id = function() {
       var string;
       string = "sel" + this.generate_random_char() + this.generate_random_char() + this.generate_random_char();
@@ -891,11 +937,16 @@
       }
       return string;
     };
+
     return Chosen;
-  })();
+
+  })(AbstractChosen);
+
   get_side_border_padding = function(elmt) {
     var side_border_padding;
     return side_border_padding = elmt.outerWidth() - elmt.width();
   };
+
   root.get_side_border_padding = get_side_border_padding;
+
 }).call(this);