var SmartList=Class.create();SmartList.prototype={currentPage:1,currentFlag:"smartlist-all",options:{},flagInfo:null,listItems:[],itemFlagIndexes:[],initialize:function(){var options=Object.extend({baseName:"sl",itemClass:"item",showFlagCount:true,itemFlagClass:"flags",itemFlagSeparator:", ",itemChangeEffect:"Blind",itemChangeDuration:1,pageChangeEffect:"FadeAppear",pageChangeDuration:0.5,numItemsPerPage:10,paginationLeft:'\u00ab',paginationRight:"\u00bb",maxPaginationLinks:10,defaultDropdownOptText:"All items",optgroups:{}},arguments[0]||{});var listItems=$$("#"+options.baseName+" ."+options.itemClass);var itemFlagIndexes=[];var flagInfo=new Hash();var currFlagIndex=0;for(var i=0;i<listItems.length;i++)
{listItems[i].style.display=(i<options.numItemsPerPage)?"block":"none";var itemFlagNodes=$(listItems[i]).select("."+options.itemFlagClass);var currItemFlagIndexes=[];var linkNodes=[];for(var j=0;j<itemFlagNodes.length;j++)
{var currItemFlagStrings=$(itemFlagNodes[j]).innerHTML.split(/\|\|/i);var flagSpan=document.createElement("span");for(var k=0;k<currItemFlagStrings.length;k++)
{var currFlag=currItemFlagStrings[k].replace(/&nbsp;/g," ");flagIndex=currFlagIndex;if(flagInfo.get(currFlag)==undefined)
{flagInfo.set(currFlag,[currFlagIndex,1]);currFlagIndex++;}
else
{var oldFlagInfo=flagInfo.get(currFlag);flagIndex=oldFlagInfo[0];flagCount=oldFlagInfo[1]+1;flagInfo.set(currFlag,[flagIndex,flagCount]);}
var a=$(document.createElement("a"));a.setAttribute("href","#");a.addClassName(options.baseName+"-flag"+flagIndex);a.appendChild(document.createTextNode(currFlag));flagSpan.appendChild(a);flagSpan.appendChild(document.createTextNode(options.itemFlagSeparator));currItemFlagIndexes.push(flagIndex);}
$(itemFlagNodes[j]).innerHTML="";$(itemFlagNodes[j]).appendChild(flagSpan);}
if(flagSpan.childNodes.length)
flagSpan.removeChild(flagSpan.childNodes[flagSpan.childNodes.length-1]);itemFlagIndexes[i]=currItemFlagIndexes;}
var sorted=flagInfo.keys().sort();var sortedFlagInfo=new Hash();for(var i=0;i<sorted.length;i++)
{var value=flagInfo.get(sorted[i]);sortedFlagInfo.set(sorted[i],value);}
this.options=options;this.flagInfo=sortedFlagInfo;this.listItems=listItems;this.itemFlagIndexes=itemFlagIndexes;this.createPagination("smartlist-all");this.addDropdown();$(options.baseName).show();},createPagination:function(flagIndex)
{var listItems=this.listItems;var options=this.options;var flagInfo=this.flagInfo;var numPages=0;if(flagIndex=="smartlist-all")
numPages=Math.ceil(listItems.length/options.numItemsPerPage);else
{var flagCount=this._getFlagCountFromFlagIndex(flagIndex);numPages=Math.ceil(flagCount/options.numItemsPerPage);}
$(options.baseName+"-pagination").innerHTML="";if(numPages<=1)
return;var pagination=document.createElement("span");var previousSpan=document.createElement("span");previousSpan.setAttribute("id",options.baseName+"-pagination-previous");previousSpan.appendChild(document.createTextNode(this.options.paginationLeft));pagination.appendChild(previousSpan);var halfTotalNavPages=Math.floor(options.maxPaginationLinks/2);for(var i=1;i<=numPages;i++)
{var span=document.createElement("span");span.setAttribute("id",options.baseName+"-page"+i);if(i==1)
{span.setAttribute("class",options.baseName+"-pagination-selected");span.setAttribute("className",options.baseName+"-pagination-selected");}
if(i>halfTotalNavPages)
span.style.cssText="display:none";var a=document.createElement("a");a.setAttribute("href","#");a.onclick=this.changePage.bindAsEventListener(this,i);a.appendChild(document.createTextNode(i));span.appendChild(a);pagination.appendChild(span);}
var nextSpan=document.createElement("span");nextSpan.setAttribute("id",options.baseName+"-pagination-next");nextSpan.appendChild(this._getPaginationNextLinkNode());pagination.appendChild(nextSpan);$(options.baseName+"-pagination").appendChild(pagination);},addDropdown:function()
{var options=this.options;var flagInfo=this.flagInfo;var s=document.createElement("select");s.onchange=this.filterByFlag.bindAsEventListener(this);var defaultOpt=document.createElement("option");defaultOpt.setAttribute("value","smartlist-all");defaultOpt.appendChild(document.createTextNode(options.defaultDropdownOptText));s.appendChild(defaultOpt);var currSmartList=this;flagInfo.each(function(pair){var flag=pair.key;var index=pair.value[0];var count=pair.value[1];var opt=document.createElement("option");opt.setAttribute("value",index);var displayText=(options.showFlagCount)?flag+" ("+count+")":flag;opt.appendChild(document.createTextNode(displayText));s.appendChild(opt);$$("."+options.baseName+"-flag"+index).invoke('observe','click',currSmartList.filterByFlag.bindAsEventListener(currSmartList,index));});$(options.baseName+"-flag-dropdown").appendChild(s);},filterByFlag:function(event,index){var flagIndex=index;if(Event.element(event).value!=undefined)
flagIndex=Event.element(event).value;var listItems=this.listItems;var options=this.options;var itemFlagIndexes=this.itemFlagIndexes;var count=0;for(var i=0;i<listItems.length;i++)
{if(count>=options.numItemsPerPage)
{listItems[i].hide();continue;}
if(itemFlagIndexes[i].include(flagIndex)||flagIndex=="smartlist-all")
{if(listItems[i].style.display=="none")
{switch(options.itemChangeEffect)
{case"Blind":Effect.BlindDown(listItems[i],{duration:options.itemChangeDuration});break;case"FadeAppear":Effect.Appear(listItems[i],{duration:options.itemChangeDuration});break;case"ShrinkGrow":Effect.Grow(listItems[i],{duration:options.itemChangeDuration});break;default:listItems[i].show();break;}}
count++;}
else
{if(listItems[i].style.display!="none")
{switch(options.itemChangeEffect)
{case"Blind":Effect.BlindUp(listItems[i],{duration:options.itemChangeDuration});break;case"FadeAppear":Effect.Fade(listItems[i],{duration:options.itemChangeDuration});break;case"ShrinkGrow":Effect.Shrink(listItems[i],{duration:options.itemChangeDuration});break;default:listItems[i].hide();break;}}
else
listItems[i].hide();}}
this._selectDropdownOption(flagIndex);this.createPagination(flagIndex);this.currentPage=1;this.currentFlag=flagIndex;Event.stop(event);},changePage:function(event,page){var options=this.options;var currentPage=this.currentPage;if(page==currentPage)
return;if(page=="next")
page=currentPage+1;else if(page=="previous")
page=currentPage-1;$(options.baseName+"-page"+currentPage).removeClassName(options.baseName+"-pagination-selected");$(options.baseName+"-page"+page).addClassName(options.baseName+"-pagination-selected");var selectedFlagItems=(this.currentFlag=="smartlist-all")?this.listItems:this._getItemsByFlag(this.currentFlag);var firstItemToHide=(currentPage-1)*options.numItemsPerPage;var maxLastItem=firstItemToHide+options.numItemsPerPage;var lastItemToHide=(maxLastItem>selectedFlagItems.length)?selectedFlagItems.length:maxLastItem;var firstItemToShow=(page-1)*options.numItemsPerPage;var maxLastItem=firstItemToShow+options.numItemsPerPage;var lastItemToShow=(maxLastItem>selectedFlagItems.length)?selectedFlagItems.length:maxLastItem;for(var i=0;i<selectedFlagItems.length;i++)
{if(i>=firstItemToHide&&i<lastItemToHide)
{switch(options.pageChangeEffect)
{case"Blind":Effect.BlindUp(selectedFlagItems[i],{duration:options.pageChangeDuration});break;case"FadeAppear":Effect.Fade(selectedFlagItems[i],{duration:options.pageChangeDuration});break;case"ShrinkGrow":Effect.Shrink(selectedFlagItems[i],{duration:options.pageChangeDuration});break;default:$(selectedFlagItems[i]).hide();break;}}
if(i>=firstItemToShow&&i<lastItemToShow)
{switch(options.pageChangeEffect)
{case"Blind":Effect.BlindDown(selectedFlagItems[i],{delay:options.pageChangeDuration,duration:options.pageChangeDuration});break;case"FadeAppear":Effect.Appear(selectedFlagItems[i],{delay:options.pageChangeDuration,duration:options.pageChangeDuration});break;case"ShrinkGrow":Effect.Grow(selectedFlagItems[i],{delay:options.pageChangeDuration,duration:options.pageChangeDuration});break;default:$(selectedFlagItems[i]).show();break;}}}
var lastPage=Math.ceil(selectedFlagItems.length/options.numItemsPerPage);if(page==1)
$(options.baseName+"-pagination-previous").innerHTML=options.paginationLeft;else
{$(options.baseName+"-pagination-previous").innerHTML="";$(options.baseName+"-pagination-previous").appendChild(this._getPaginationPreviousLinkNode());}
if(page==lastPage)
$(options.baseName+"-pagination-next").innerHTML=options.paginationRight;else
{$(options.baseName+"-pagination-next").innerHTML="";$(options.baseName+"-pagination-next").appendChild(this._getPaginationNextLinkNode());}
var totalVisible=0;var halfTotalNavPages=Math.floor(options.maxPaginationLinks/2);var firstVisiblePage=(page>halfTotalNavPages)?page-halfTotalNavPages:1;var lastVisiblePage=((page+halfTotalNavPages)<lastPage)?page+halfTotalNavPages:lastPage;for(var i=1;i<=lastPage;i++)
{if(i<firstVisiblePage)
$(options.baseName+"-page"+i).hide();if(i>lastVisiblePage)
$(options.baseName+"-page"+i).hide();if(i>=firstVisiblePage&&i<=lastVisiblePage)
$(options.baseName+"-page"+i).show();}
this.currentPage=page;Event.stop(event);},_getFlagCountFromFlagIndex:function(flagIndex)
{var flagCount=null;this.flagInfo.each(function(pair){var key=pair.key;var value=pair.value;if(flagIndex==value[0])
flagCount=value[1];});return flagCount;},_getItemsByFlag:function(flagIndex)
{var nodes=[];for(var i=0;i<this.listItems.length;i++)
{if(this.itemFlagIndexes[i].include(flagIndex))
nodes.push(this.listItems[i]);}
return nodes;},_getPaginationNextLinkNode:function()
{var nextLink=document.createElement("a");nextLink.setAttribute("href","#");nextLink.onclick=this.changePage.bindAsEventListener(this,"next");nextLink.appendChild(document.createTextNode(this.options.paginationRight));return nextLink;},_getPaginationPreviousLinkNode:function()
{var previousLink=document.createElement("a");previousLink.setAttribute("href","#");previousLink.onclick=this.changePage.bindAsEventListener(this,"previous");var left=this.options.paginationLeft;previousLink.appendChild(document.createTextNode(left));return previousLink;},_selectDropdownOption:function(flagIndex)
{var options=this.options;var dd_div=$(options.baseName+"-flag-dropdown").getElementsByTagName("select");var dd=dd_div[0];for(var i=0;i<dd.options.length;i++)
{if(dd.options[i].value==flagIndex)
{dd.options[i].selected=true;break;}}}};