jQuery.fn.combobox=function(styles,options){var _context=this;this.combobox=new Function();var styleSettings={comboboxContainerClass:null,comboboxValueContentContainerClass:null,comboboxValueContentClass:null,comboboxDropDownButtonClass:null,comboboxDropDownClass:null,comboboxDropDownItemClass:null,comboboxDropDownItemHoverClass:null,comboboxDropDownGroupItemHeaderClass:null,comboboxDropDownGroupItemContainerClass:null};var optionSettings={animationType:"slide",animationSpeed:"fast"};if(styles){jQuery.extend(styleSettings,styles)}if(options){jQuery.extend(optionSettings,options)}this.combobox.onChange=null;function getInstance(context){return context[0].internalCombobox}function makeRemoveFunction(context){return function(){getInstance(context).remove()}}function makeUpdateFunction(context){return function(){getInstance(context).update()}}function makeUpdateSelectionFunction(context){return function(){getInstance(context).updateSelection()}}function makeAddRangeFunction(context){return function(dataSource){getInstance(context).addRange(dataSource)}}jQuery.fn.extend(this.combobox,{addRange:makeAddRangeFunction(_context),remove:makeRemoveFunction(_context),update:makeUpdateFunction(_context),updateSelection:makeUpdateSelectionFunction(_context)});return this.each(function(){this.internalCombobox=new ComboboxClass(this);this.internalCombobox.initialise();function ComboboxClass(elementDOM){var _originalElementJQuery=jQuery(elementDOM);var _containerJQuery=null;var _containerDefaultStyle="background-color:#fff;border-left: solid 2px #777;border-top: solid 2px #777;border-right: solid 1px #ccc;border-bottom: solid 1px #ccc;";var _containerEnforcedStyle="padding:0;";var _dropDownListJQuery=null;var _dropDownListEnforcedStyle="list-style-type:none;min-height:15px;padding-top:0;margin:0;overflow:auto";var _dropDownListDefaultStyle="cursor:default;padding:2px;background:#fff;border-right:solid 1px #000;border-bottom:solid 1px #000;border-left:solid 1px #aaa;border-top:solid 1px #aaa;";var _dropDownListItemEnforcedStyle="display:block;";var _dropDownListItemDefaultStyle="cursor:default;padding-left:2px;font-weight:normal;font-style:normal;";var _dropDownListGroupItemContainerEnforcedStyle="list-style-type:none;";var _dropDownListGroupItemContainerDefaultStyle="padding-left:10px;margin-left:0;";var _dropDownListGroupItemHeaderEnforcedStyle="";var _dropDownListGroupItemHeaderDefaultStyle="font-style:italic;font-weight:bold;";var _dropdownListMaximumHeight=200;var _valueContentContainerJQuery=null;var _valueContentContainerEnforcedStyle="position:relative;overflow:hidden;";var _valueContentJQuery=null;var _valueContentEnforcedStyle="float:left;position:absolute;cursor:default;overflow:hidden;";var _valueContentDefaultStyle="padding-left:3px;";var _dropDownButtonJQuery=null;var _dropDownButtonDefaultStyle="overflow:hidden;width:16px;height:18px;color:#000;background:#D6D3CE;font-family:arial;font-size:8px;cursor:default;text-align:center;vertical-align:middle;";var _dropDownButtonEnforcedStyle="background-repeat:no-repeat;float:right;";var _dropDownButtonDefaultUnselectedStyle="padding-left:0px;padding-top:1px;width:12px;height:13px;border-right:solid 2px #404040;border-bottom:solid 2px #404040;border-left:solid 2px #f0f0f0;border-top:solid 2px #f0f0f0";var _dropDownButtonDefaultSelectedStyle="padding-left:1px;padding-top:3px;width:12px;height:13px;border:solid 1px #808080";var _dropDownButtonDefaultCharacter="&#9660;";var _lastItemSelectedJQuery=null;var _lastItemHoveredJQuery=null;var _lastValue=null;var _downdownListPositionIsInverted=false;var _maximumItemLength=0;var _dropDownListOffset=null;var _dropDownListHeight=0;var _dropDownButtonImageDimension=null;var _valueContentContainerImageDimension=null;var _valueContentMaximumHeight=null;String.format=function(){var currentString=null;if(arguments.length!=0){currentString=arguments[0];for(var argumentIndex=1;argumentIndex<arguments.length;argumentIndex++){var modifiedString=new RegExp('\\{'+(argumentIndex-1)+'\\}','gm');currentString=currentString.replace(modifiedString,arguments[argumentIndex])}}return currentString};function getPixelValue(object){var pixelValue=null;if(object){if(object.substr(-2,2)=="px"){pixelValue=object.substr(0,(object.length-2))}}return pixelValue}function setInnerWidth(elementJQuery,width){var differenceWidth=(elementJQuery.outerWidth()-elementJQuery.width());elementJQuery.width(width-differenceWidth)}function setInnerHeight(elementJQuery,height){var differenceheight=(elementJQuery.outerHeight()-elementJQuery.height());elementJQuery.height(height-differenceheight)}function applyMultipleStyles(elementJQuery,multipleCSSStyles){var stylePairArray=multipleCSSStyles.split(";");if(stylePairArray.length>0){for(var stylePairArrayIndex=0;stylePairArrayIndex<stylePairArray.length;stylePairArrayIndex++){var stylePair=stylePairArray[stylePairArrayIndex];var splitStylePair=stylePair.split(":");elementJQuery.css(splitStylePair[0],splitStylePair[1])}}}function getImageDimension(imageURL){var dimension=new Object();dimension.width=0;dimension.height=0;sizingImageJQuery=jQuery("<img style='border:none;margin:0;padding:0;'></img>");sizingImageJQuery.attr("src",imageURL);_containerJQuery.append(sizingImageJQuery);dimension.width=sizingImageJQuery.width();dimension.height=sizingImageJQuery.height();sizingImageJQuery.remove();return dimension}function calculateIndividualImageDimension(jqueryElement){var dimension=null;var backgroundImageURL=jqueryElement.css("background-image");backgroundImageURL=backgroundImageURL.replace("url(","","gi");backgroundImageURL=backgroundImageURL.replace('"','',"gi");backgroundImageURL=backgroundImageURL.replace('\"','',"gi");backgroundImageURL=backgroundImageURL.replace(")","","gi");if(backgroundImageURL!="none"){dimension=getImageDimension(backgroundImageURL)}return dimension}function calculateImageDimensions(){_dropDownButtonImageDimension={width:48,height:24};_valueContentContainerImageDimension={width:243,height:24}}function setValueContentContainerState(state){if(styleSettings.comboboxValueContentContainerClass){if(_valueContentContainerImageDimension!=null){var height=_valueContentContainerJQuery.height();var offset=(state*height);if(_valueContentContainerImageDimension.height>offset){var background_positionCSS="0px -"+offset+"px";_valueContentContainerJQuery.css("background-position",background_positionCSS)}}}}function setDropDownButtonState(state){if(styleSettings.comboboxDropDownButtonClass){if(_dropDownButtonImageDimension!=null){var width=_dropDownButtonJQuery.width();var offset=(state*width);if(_dropDownButtonImageDimension.width>offset){var background_positionCSS="-"+offset+"px 0px";_dropDownButtonJQuery.css("background-position",background_positionCSS)}}}else{var style=_dropDownButtonDefaultUnselectedStyle;if(state==1){style=_dropDownButtonDefaultSelectedStyle}applyMultipleStyles(_dropDownButtonJQuery,style)}}function setControlVisualState(state){setValueContentContainerState(state);setDropDownButtonState(state)}function buildValueContent(){var valueContentContainerHTML="";if(styleSettings.comboboxValueContentContainerClass){valueContentContainerHTML=String.format("<div class='{0}' style='{1}'></div>",styleSettings.comboboxValueContentContainerClass,_valueContentContainerEnforcedStyle)}else{valueContentContainerHTML=String.format("<div style='{0}'></div>",_valueContentContainerEnforcedStyle)}var valueContentHTML="";if(styleSettings.comboboxValueContentClass){valueContentHTML=String.format("<div class='{0}' style='{1}'></div>",styleSettings.comboboxValueContentClass,_valueContentEnforcedStyle)}else{valueContentHTML=String.format("<div style='{0}'></div>",_valueContentEnforcedStyle+_valueContentDefaultStyle)}var dropdownButtonHTML="";if(styleSettings.comboboxDropDownButtonClass){dropdownButtonHTML=String.format("<div class='{1}' style='{0}'></div>",_dropDownButtonEnforcedStyle,styleSettings.comboboxDropDownButtonClass)}else{dropdownButtonHTML=String.format("<div style='{0}'>{1}</div>",(_dropDownButtonEnforcedStyle+_dropDownButtonDefaultStyle),_dropDownButtonDefaultCharacter)}_valueContentJQuery=jQuery(valueContentHTML);_dropDownButtonJQuery=jQuery(dropdownButtonHTML);_valueContentContainerJQuery=jQuery(valueContentContainerHTML);_valueContentContainerJQuery.appendTo(_containerJQuery);_valueContentJQuery.appendTo(_valueContentContainerJQuery);_dropDownButtonJQuery.appendTo(_valueContentContainerJQuery);calculateImageDimensions();_valueContentMaximumHeight=getPixelValue(_valueContentJQuery.css("max-height"));setControlVisualState(0)}function buildDropDownItem(childJQuery){var dataItemHTML="";var dataItemClass=null;var dataItemText="";var dataItemTitle="";var dataItemValue=null;var dataItemStyle="";var dataItemType="option";var childElement=childJQuery[0];if(childElement.title){if(childElement.title!=""){dataItemTitle=childElement.title}}if(childJQuery.is('option')){if(childElement.dataText){dataItemText=childElement.dataText}else{dataItemText=childJQuery.text()}dataItemValue=childJQuery.val();if(styleSettings.comboboxDropDownItemClass){dataItemClass=styleSettings.comboboxDropDownItemClass;dataItemStyle=_dropDownListItemEnforcedStyle}else{dataItemStyle=(_dropDownListItemEnforcedStyle+_dropDownListItemDefaultStyle)}if(dataItemClass){dataItemHTML=String.format("<li style='{0}' class='{1}'>{2}</li>",dataItemStyle,dataItemClass,dataItemText)}else{dataItemHTML=String.format("<li style='{0}'>{1}</li>",dataItemStyle,dataItemText)}}else{if(childJQuery[0].dataText){dataItemText=childJQuery[0].dataText}else{dataItemText=childJQuery.attr('label')}dataItemValue=childJQuery.attr('class');dataItemType="optgroup";if(styleSettings.comboboxDropDownGroupItemHeaderClass){dataItemClass=styleSettings.comboboxDropDownGroupItemHeaderClass;dataItemStyle=_dropDownListGroupItemHeaderEnforcedStyle}else{dataItemStyle=(_dropDownListGroupItemHeaderEnforcedStyle+_dropDownListGroupItemHeaderDefaultStyle)}if(dataItemClass){dataItemHTML=String.format("<li><span style='{0}' class='{1}'>{2}</span></li>",dataItemStyle,dataItemClass,dataItemText)}else{dataItemHTML=String.format("<li><span style='{0}'>{1}</span></li>",dataItemStyle,dataItemText)}}var dataItemJQuery=jQuery(dataItemHTML);dataItemJQuery.css("display","inline");dataItemJQuery[0].dataText=dataItemText;dataItemJQuery[0].dataValue=dataItemValue;dataItemJQuery[0].dataType=dataItemType;if(dataItemTitle==""){dataItemTitle=dataItemText}dataItemJQuery[0].title=dataItemTitle;return dataItemJQuery}function recursivelyBuildList(parentJQuery,childrenOptionsJQuery){childrenOptionsJQuery.each(function(){var childJQuery=jQuery(this);var builtDropDownItemJQuery=buildDropDownItem(childJQuery);parentJQuery.append(builtDropDownItemJQuery);var offsetLeft=builtDropDownItemJQuery.offset().left;offsetLeft-=_dropDownListOffset.left;if(offsetLeft<0){offsetLeft=0}var width=(offsetLeft+builtDropDownItemJQuery.outerWidth());if(width>_maximumItemLength){_maximumItemLength=width}applyMultipleStyles(builtDropDownItemJQuery,_dropDownListItemEnforcedStyle);if(childJQuery.is('optgroup')){var dataGroupItemHTML="";if(styleSettings.comboboxDropDownGroupItemContainerClass){dataGroupItemHTML=String.format("<ul style='{0}' class='{1}'></ul>",_dropDownListGroupItemContainerEnforcedStyle,styleSettings.comboboxDropDownGroupItemContainerClass)}else{dataGroupItemHTML=String.format("<ul style='{0}'></ul>",(_dropDownListGroupItemContainerEnforcedStyle+_dropDownListGroupItemContainerDefaultStyle))}var dataGroupItemJQuery=jQuery(dataGroupItemHTML);builtDropDownItemJQuery.append(dataGroupItemJQuery);recursivelyBuildList(dataGroupItemJQuery,childJQuery.children())}})}function buildDropDownList(){var originalElementChildrenJQuery=_originalElementJQuery.children();_lastItemSelectedJQuery=null;_lastValue=null;if(_dropDownListJQuery){_dropDownListJQuery.empty()}else{var dropDownHTML="";if(styleSettings.comboboxDropDownClass){dropDownHTML=String.format("<ul class='{0}' style='{1}'></ul>",styleSettings.comboboxDropDownClass,_dropDownListEnforcedStyle)}else{dropDownHTML=String.format("<ul style='{0}'></ul>",(_dropDownListEnforcedStyle+_dropDownListDefaultStyle))}_dropDownListJQuery=jQuery(dropDownHTML);_dropDownListJQuery.appendTo(_containerJQuery);_dropDownListJQuery.attr("tabIndex",0)}if(originalElementChildrenJQuery.length>0){_maximumItemLength=0;_dropDownListOffset=_dropDownListJQuery.offset();recursivelyBuildList(_dropDownListJQuery,originalElementChildrenJQuery)}var maximumHeight=getPixelValue(_dropDownListJQuery.css("max-height"));if(maximumHeight){_dropdownListMaximumHeight=maximumHeight}var dropdownListHeight=_dropDownListJQuery.height();if(dropdownListHeight>_dropdownListMaximumHeight){_dropDownListJQuery.height(_dropdownListMaximumHeight)}_dropDownListHeight=_dropDownListJQuery.height()}function updateDropDownListWidth(){var dropdownListWidth=_containerJQuery.outerWidth();if(dropdownListWidth<_maximumItemLength){dropdownListWidth=_maximumItemLength}_dropDownListJQuery.width(dropdownListWidth)}function positionDisplayValue(){_valueContentJQuery.height("auto");var displayValueHeight=_valueContentJQuery.outerHeight();var displayContainerHeight=_valueContentContainerJQuery.height();if(_valueContentMaximumHeight){if(_valueContentMaximumHeight<displayValueHeight){displayValueHeight=_valueContentMaximumHeight;_valueContentJQuery.height(displayValueHeight)}}var difference=((displayContainerHeight-displayValueHeight)/2);if(difference<0){difference=0}_valueContentJQuery.css("top",difference)}function applyLayout(){if(typeof optionSettings.width=="undefined")_containerJQuery.width(_containerJQuery.find("select:first").width());else _containerJQuery.width(optionSettings.width);var controlWidth=_containerJQuery.width();setInnerWidth(_valueContentContainerJQuery,controlWidth);var displayValueWidth=(_valueContentContainerJQuery.width()-_dropDownButtonJQuery.outerWidth());setInnerWidth(_valueContentJQuery,displayValueWidth);var dropDownButtonHeight=_dropDownButtonJQuery.outerHeight();setInnerHeight(_valueContentContainerJQuery,dropDownButtonHeight);_dropDownListJQuery.css("position","absolute");_dropDownListJQuery.css("z-index","20000");updateDropDownListWidth();var currentLeftPosition=_dropDownListJQuery.offset().left;var leftPosition=(currentLeftPosition-(_containerJQuery.outerWidth()-_containerJQuery.width()));_dropDownListJQuery.css("left",leftPosition+1);_dropDownListJQuery.hide()}function setContentDisplay(){var valueHasChanged=false;var originalElement=_originalElementJQuery[0];var dataItemJQuery;if(originalElement.length>0){var selectedDropDownListItemJQuery=jQuery("li[@dataValue='"+_originalElementJQuery.val()+"']",_dropDownListJQuery);_valueContentJQuery.html(selectedDropDownListItemJQuery[0].dataText);_valueContentJQuery.attr("title",selectedDropDownListItemJQuery[0].title);positionDisplayValue();if(_lastValue){if(_lastValue!=_originalElementJQuery.val()){valueHasChanged=true}}_lastValue=_originalElementJQuery.val();if(valueHasChanged){if(_context.combobox.onChange){_context.combobox.onChange()}}if(_lastItemSelectedJQuery){toggleItemHighlight(_lastItemSelectedJQuery,false)}_lastItemSelectedJQuery=selectedDropDownListItemJQuery;toggleItemHighlight(_lastItemSelectedJQuery,true)}}function scrollDropDownListItemIntoView(dropdownListItemJQuery){if(dropdownListItemJQuery){if(_dropDownListHeight>=_dropdownListMaximumHeight){var offset=dropdownListItemJQuery.offset();if((offset.top>_dropDownListHeight)||(offset.top<=dropdownListItemJQuery.outerHeight())){dropdownListItemJQuery.parent()[0].scrollTop=dropdownListItemJQuery[0].offsetTop}}}}function toggleItemHighlight(elementJQuery,isHighlighted){if(elementJQuery){if(styleSettings.comboboxDropDownItemHoverClass){if(isHighlighted){elementJQuery.addClass(styleSettings.comboboxDropDownItemHoverClass)}else{elementJQuery.removeClass(styleSettings.comboboxDropDownItemHoverClass)}}else{if(isHighlighted){elementJQuery.css("background","#000");elementJQuery.css("color","#fff")}else{elementJQuery.css("background","");elementJQuery.css("color","")}}}}function buildContainer(){var containerHTML="";if(styleSettings.comboboxContainerClass){containerHTML=String.format("<div class='{0}' style='{1}'></div>",styleSettings.comboboxContainerClass,_containerEnforcedStyle)}else{containerHTML=String.format("<div style='{0}' style='{1}'></div>",_containerDefaultStyle,_containerEnforcedStyle)}_containerJQuery=jQuery(containerHTML);_originalElementJQuery.before(_containerJQuery);_containerJQuery.append(_originalElementJQuery);_originalElementJQuery.hide();_containerJQuery.attr("tabIndex",0);_containerJQuery.addClass(_containerJQuery.find("select:first")[0].id)}this.initialise=function(){buildContainer();buildValueContent();buildDropDownList();applyLayout();bindEvents();setContentDisplay()};function postDropDownListShown(){_dropDownListJQuery.focus();scrollDropDownListItemIntoView(_lastItemSelectedJQuery)}function setAndBindContainerFocus(){_containerJQuery.focus();bindContainerClickEvent()}function slideUp(newTop){_dropDownListJQuery.animate({height:"toggle",top:newTop},optionSettings.animationSpeed,postDropDownListShown)}function slideDown(newTop){_dropDownListJQuery.animate({height:"toggle",opacity:"toggle",top:newTop},optionSettings.animationSpeed,setAndBindContainerFocus)}function slideToggle(callback){_dropDownListJQuery.animate({height:"toggle",opacity:"toggle"},optionSettings.animationSpeed,callback)}function getDropDownListTop(){var comboboxTop=_containerJQuery.position().top;var dropdownListHeight=_dropDownListJQuery.outerHeight();var comboboxBottom=(comboboxTop+_containerJQuery.outerHeight());var windowScrollTop=jQuery(window).scrollTop();var windowHeight=jQuery(window).height();var availableSpaceBelow=(windowHeight-(comboboxBottom-windowScrollTop));var dropdownListTop;dropdownListTop=comboboxBottom;_downdownListPositionIsInverted=false;return dropdownListTop}function toggleDropDownList(isShown){if(isShown){_originalElementJQuery._oldValue=_lastValue;if(_dropDownListJQuery.is(":hidden")){unbindContainerClickEvent();toggleItemHighlight(_lastItemHoveredJQuery,false);toggleItemHighlight(_lastItemSelectedJQuery,true);setControlVisualState(1);var dropdownListTop=getDropDownListTop();_dropDownListJQuery.css("top",dropdownListTop);_dropDownListJQuery.css("left",_containerJQuery.offset().left);switch(optionSettings.animationType){case"slide":if(_downdownListPositionIsInverted){var comboboxTop=_containerJQuery.position().top;var containerHeight=_containerJQuery.outerHeight();_dropDownListJQuery.css("top",(comboboxTop-containerHeight));slideUp(dropdownListTop)}else{slideToggle(postDropDownListShown)}break;case"fade":_dropDownListJQuery.fadeIn(optionSettings.animationSpeed,postDropDownListShown);break;default:_dropDownListJQuery.show(1,postDropDownListShown)}}}else{if(_dropDownListJQuery.is(":visible")){setControlVisualState(0);switch(optionSettings.animationType){case"slide":if(_downdownListPositionIsInverted){comboboxTop=_containerJQuery.position().top;dropdownListHeight=_dropDownListJQuery.height();slideDown(comboboxTop-_containerJQuery.outerHeight())}else{slideToggle(setAndBindContainerFocus)}break;case"fade":_dropDownListJQuery.fadeOut(optionSettings.animationSpeed,setAndBindContainerFocus);break;default:_dropDownListJQuery.hide();setAndBindContainerFocus()}if(_originalElementJQuery._oldValue!=_lastValue&&optionSettings.onchange)optionSettings.onchange(_originalElementJQuery,_lastValue)}}}function setOriginalSelectItem(selectedIndex,selectedValue){var originalElementDOM=_originalElementJQuery[0];if(selectedValue==null){originalElementDOM.selectedIndex=selectedIndex}else{originalElementDOM.value=selectedValue}if(originalElementDOM.onchange){originalElementDOM.onchange()}setContentDisplay()}function selectValue(subSelector){var originalElement=_originalElementJQuery[0];var currentIndex=originalElement.selectedIndex;var newIndex=-1;var optionCountZeroBased=originalElement.length-1;switch(subSelector){case":next":newIndex=currentIndex+1;if(newIndex>optionCountZeroBased){newIndex=optionCountZeroBased}break;case":previous":newIndex=currentIndex-1;if(newIndex<0){newIndex=0}break;case":first":newIndex=0;break;case":last":newIndex=optionCountZeroBased;break;default:newIndex=currentIndex+1;for(;newIndex<optionCountZeroBased;newIndex++){if(originalElement.options[newIndex].text.charAt(0)==subSelector){break}}if(newIndex>optionCountZeroBased||originalElement.options[newIndex].text.charAt(0)!=subSelector){for(newIndex=0;newIndex<currentIndex-1;newIndex++){if(originalElement.options[newIndex].text.charAt(0)==subSelector){break}}}if(originalElement.options[newIndex].text.charAt(0)!=subSelector)return;break}setOriginalSelectItem(newIndex,null);scrollDropDownListItemIntoView(_lastItemSelectedJQuery)}function isDropDownVisible(){return _dropDownListJQuery.is(":visible")}function bindItemEvents(){jQuery("li",_dropDownListJQuery).not("ul").not("span").not("[@dataType='optgroup']").each(function(){var itemJQuery=jQuery(this);itemJQuery.click(function(clickEvent){clickEvent.stopPropagation();dropdownList_onItemClick(itemJQuery)});itemJQuery.mouseover(function(){dropdownList_onItemMouseOver(itemJQuery)});itemJQuery.mouseout(function(){dropdownList_onItemMouseOut(itemJQuery)})})}function bindBlurEvent(){_dropDownListJQuery.blur(function(blurEvent){blurEvent.stopPropagation();dropdownList_onBlur()})}function bindContainerClickEvent(){_containerJQuery.click(function(){container_onClick()})}function unbindContainerClickEvent(){_containerJQuery.unbind("click")}function bindEvents(){_containerJQuery.keydown(function(keyEvent){keyEvent.preventDefault();container_onKeyDown(keyEvent)});bindContainerClickEvent();bindBlurEvent();bindItemEvents()}function container_onClick(){if(_dropDownListJQuery.is(":hidden")){toggleDropDownList(true)}else{toggleDropDownList(false)}}function dropdownList_onBlur(){if(_dropDownListJQuery.is(":visible")){toggleDropDownList(false)}}function dropdownList_onItemClick(itemJQuery){setOriginalSelectItem(null,itemJQuery[0].dataValue);toggleDropDownList(false)}function dropdownList_onItemMouseOver(itemJQuery){toggleItemHighlight(_lastItemSelectedJQuery,false);toggleItemHighlight(_lastItemHoveredJQuery,false);toggleItemHighlight(itemJQuery,true)}function dropdownList_onItemMouseOut(itemJQuery){_lastItemHoveredJQuery=itemJQuery}function container_onKeyDown(keyEvent){switch(keyEvent.which){case 33:case 36:selectValue(":first");break;case 34:case 35:selectValue(":last");break;case 37:selectValue(":previous");break;case 38:if(keyEvent.altKey){toggleDropDownList(!(isDropDownVisible()))}else{selectValue(":previous")}break;case 39:selectValue(":next");break;case 40:if(keyEvent.altKey){toggleDropDownList(!(isDropDownVisible()))}else{selectValue(":next")}break;case 27:case 13:toggleDropDownList(false);break;case 9:_dropDownListJQuery.blur();jQuery(window)[0].focus();break;default:if(keyEvent.ctrlKey||keyEvent.altKey)break;var c=String.fromCharCode(keyEvent.which).toUpperCase();if(('0'<=c&&c<='9')||(c>='A'&&c<='Z'))selectValue(c);break}}this.updateSelection=function(){setContentDisplay()};this.update=function(){buildDropDownList();updateDropDownListWidth();bindItemEvents();setContentDisplay()};this.remove=function(){_containerJQuery.before(_originalElementJQuery);_containerJQuery.remove();_originalElementJQuery[0].internalCombobox=null;_originalElementJQuery.show()};this.addRange=function(dataSource){if(dataSource){var originalOptions=_originalElementJQuery[0].options;var optionTotal=originalOptions.length;for(optionIndex in dataSource){var option=dataSource[optionIndex];var optionElement=document.createElement("option");optionElement.value=option.value;optionElement.text=option.text;optionElement.dataText=option.text;if(option.title){optionElement.title=option.title}originalOptions[optionTotal+optionIndex]=optionElement}_originalElementJQuery.combobox.update()}}}})}