FilesList = Class.create(SelectableElements, {

	initialize: function($super, oElement, bSelectMultiple, oSortTypes, sCurrentRep, oAjaxplorer, sDefaultDisplay)
	{
		$super(oElement, bSelectMultiple);
		this._displayMode = sDefaultDisplay;		
		this._thumbSize = 64;
		this._crtImageIndex = 0;
	
		this._bSelection = false;
		this._bUnique = false;
		this._bFile = false;
		this._bDir = false;
		this._bEditable = false;
		this._oSortTypes = oSortTypes;
		this._ajaxplorer = oAjaxplorer;
		this._pendingFile = null;
		this._currentRep = sCurrentRep;	
		this.allDraggables = new Array();
		this.allDroppables = new Array();		
		
		// Default headersDef
		this.columnsDef = $A([]);
		this.columnsDef.push({messageId:1,attributeName:'text'});
		this.columnsDef.push({messageId:2,attributeName:'filesize'});
		this.columnsDef.push({messageId:3,attributeName:'mimestring'});
		this.columnsDef.push({messageId:4,attributeName:'modiftime'});
		
		this.initGUI();
			
		Event.observe(document, "keydown", function(e){	
			if (e == null) e = $('content_pane').ownerDocument.parentWindow.event;
			return this.keydown(e);		
		}.bind(this));
					
		if(this._currentRep != null){
			this.loadXmlList(this._currentRep);
		}
	},
	
	initGUI: function()
	{
		if(this._displayMode == "list")
		{
			var buffer = '<TABLE width="100%" cellspacing="0"  id="selectable_div_header" class="sort-table">';
			this.columnsDef.each(function(column){buffer = buffer + '<col\>';});
			buffer = buffer + '<thead><tr>';
			this.columnsDef.each(function(column){
				buffer = buffer + '<td ajxp_message_id="'+column.messageId+'">'+MessageHash[column.messageId]+'</td>';
			});
			buffer = buffer + '</tr></thead></table><div id="table_rows_container" style="overflow:auto;"><table id="selectable_div" class="sort-table" width="100%" cellspacing="0"><tbody></tbody></table></div>';
			$('content_pane').innerHTML  = buffer;
			oElement = $('selectable_div');
			
			this.initSelectableItems(oElement, true, $('table_rows_container'));
			this._sortableTable = new AjxpSortable(oElement, this._oSortTypes, $('selectable_div_header'));
			fitHeightToBottom($('table_rows_container'), $('content_pane'));
			this.disableTextSelection($('selectable_div_header'));
			this.disableTextSelection($('table_rows_container'));
		}
		else if(this._displayMode == "thumb")
		{
			var buffer = '<TABLE width="100%" cellspacing="0" cellpadding="0" class="sort-table">';
			buffer = buffer + '<thead><tr>';
			buffer = buffer + '<td style="border-right:0px;background-image:url(\''+ajxpResourcesFolder+'/images/header_bg_plain.png\');" ajxp_message_id="126">'+MessageHash[126]+'</td>';
			buffer = buffer + '<td align="right" id="last_header"><div class="slider" id="slider-1"><input class="slider-input" id="slider-input-1" name="slider-input-1"/></div></td>';
			buffer = buffer + '</tr></thead><tbody><tr><td colspan="2" style="padding:0px;"><div id="selectable_div" style="overflow:auto; padding:2px 5px;"></div></td></tr></tbody></table>';
			$('content_pane').innerHTML  = buffer;
			fitHeightToBottom($('selectable_div'), $('content_pane'));
			this.slider = new Slider($("slider-1"), $("slider-input-1"));		
			this.slider.setMaximum(200);
			this.slider.setMinimum(30);		
			this.slider.recalculate();
			this.slider.setValue(this._thumbSize);		
			this.slider.onchange = function()
			{
				this._thumbSize = this.slider.getValue();
				this.resizeThumbnails();
			}.bind(this);
			this.disableTextSelection($('selectable_div'));
			this.initSelectableItems($('selectable_div'), true);
		}	
		
	},
	
	setColumnsDef:function(aColumns){
		this.columnsDef = aColumns;
		if(this._displayMode == "list"){
			this.initGUI();
		}
	},
	
	setContextualMenu: function(protoMenu){
		this.protoMenu = protoMenu;	
	},
	
	switchDisplayMode: function(mode){
		if(mode)
		{
			this._displayMode = mode;
		}
		else
		{
			if(this._displayMode == "thumb") this._displayMode = "list";
			else this._displayMode = "thumb";
		}
		var currentSelection = this.getSelectedFileNames();
		this.initGUI();
		this.reload(currentSelection);
		this.fireChange();
		return this._displayMode;
	},
	
	getDisplayMode: function(){
		return this._displayMode;
	},
	
	getHeadersWidth: function(){	
		if(this._displayMode == 'thumb') return;
		var tds = $('selectable_div_header').getElementsBySelector('td');
		this.headersWidth = new Hash();
		var index = 0;	
		tds.each(function(cell){		
			this.headersWidth.set(index, cell.getWidth() - 8);
			index++;
		}.bind(this));
		//alert(this.headersWidth[0]);
	},
	
	applyHeadersWidth: function(){
		this.getHeadersWidth();
		var allItems = this.getItems();
		for(var i=0; i<allItems.length;i++)
		{
			var tds = $(allItems[i]).getElementsBySelector('td');
			var index = 0;
			var widthes = this.headersWidth;
			tds.each(function(cell){		
				if(index == (tds.size()-1)) return;
				cell.setStyle({width:widthes.get(index)+'px'});
				index++;
			});	
		}
	},
	
	initRows: function(){
		// Disable text select on elements
		if(this._displayMode == "thumb")
		{
			this.resizeThumbnails();		
			if(this.protoMenu) this.protoMenu.addElements('#selectable_div');	
			window.setTimeout(function(){this.loadNextImage();}.bind(this),10);		
		}
		else
		{
			if(this.protoMenu) this.protoMenu.addElements('#table_rows_container');
			this.applyHeadersWidth();	
		}
		if(this.protoMenu)this.protoMenu.addElements('.ajxp_draggable');
		var allItems = this.getItems();
		for(var i=0; i<allItems.length;i++)
		{
			this.disableTextSelection(allItems[i]);
		}
	},
	
	loadNextImage: function(){
		if(this.imagesHash && this.imagesHash.size())
		{
			if(this.loading) return;
			var oImageToLoad = this.imagesHash.unset(this.imagesHash.keys()[0]);		
			var image = new Image();
			image.src = "content.php?action=image_proxy&get_thumb=true&file="+oImageToLoad.filename;
			image.onload = function(){
				var img = $(oImageToLoad.index);
				if(img == null) return;
				img.src = "content.php?action=image_proxy&get_thumb=true&file="+oImageToLoad.filename;
				img.height = oImageToLoad.height;
				img.width = oImageToLoad.width;
				img.setStyle({marginTop: oImageToLoad.marginTop+'px',marginBottom: oImageToLoad.marginBottom+'px'});
				img.setAttribute("is_loaded", "true");
				this.resizeThumbnails(oImageToLoad.rowObject);
				this.loadNextImage();
			}.bind(this);
		}	
	},
	
	reload: function(pendingFileToSelect, url){
		if(this._currentRep != null) this.loadXmlList(this._currentRep, pendingFileToSelect, url);
	},
	
	setPendingSelection: function(pendingFilesToSelect){
		this._pendingFile = pendingFilesToSelect;
	},
	
	loadXmlList: function(repToLoad, pendingFileToSelect, url){	
		// TODO : THIS SHOULD BE SET ONCOMPLETE!
		this._currentRep = repToLoad;
		var connexion = new Connexion(url);
		connexion.addParameter('mode', 'file_list');
		connexion.addParameter('dir', repToLoad);	
		this._pendingFile = pendingFileToSelect;
		this.setOnLoad();
		connexion.onComplete = function (transport){
			this.parseXmlAndLoad(transport.responseXML);
		}.bind(this);	
		connexion.sendAsync();
	},
	
	parseXmlAndLoad: function(oXmlDoc){	
		if( oXmlDoc == null || oXmlDoc.documentElement == null) 
		{
			this.removeOnLoad();
			return;
		}
		this.loading = false;
		this.imagesHash = new Hash();
		this.allDroppables.each(function(el){
			Droppables.remove(el);		
		});
		this.allDroppables = new Array();
		this.allDraggables.each(function(el){
			el.destroy();
		});
		this.allDraggables = new Array();
		if(this.protoMenu){
			this.protoMenu.removeElements('.ajxp_draggable');
			this.protoMenu.removeElements('#selectable_div');
		}
		var root = oXmlDoc.documentElement;
		// loop through all tree children
		var cs = root.childNodes;
		var l = cs.length;
		// FIRST PASS FOR ERRORS CHECK
		for (var i = 0; i < l; i++) 
		{
			if(cs[i].tagName == "error")
			{
				this.removeOnLoad();
				alert(cs[i].firstChild.nodeValue);
				return;
			}
			else if(cs[i].tagName == "require_auth")
			{
				if(modal.pageLoading) modal.updateLoadingProgress('List Loaded');
				this.removeOnLoad();
				ajaxplorer.actionBar.fireAction('login');
			}
		}
		var items = this.getItems();
		for(var i=0; i<items.length; i++)
		{
			this.setItemSelected(items[i], false);
		}	
		this.removeCurrentLines();
		// NOW PARSE LINES
		for (var i = 0; i < l; i++) 
		{
			if (cs[i].tagName == "tree") 
			{
				if(this._displayMode == "list") 
				{
					this.xmlNodeToTableRow(cs[i]);
				}
				else if(this._displayMode == "thumb")
				{
					this.xmlNodeToDiv(cs[i]);
				}
			}
		}	
	
		this.initRows();
		this.removeOnLoad();
		ajaxplorer.updateHistory(this._currentRep);
		if(this._displayMode == "list")
		{
			this._sortableTable.sortColumn = -1;
			this._sortableTable.updateHeaderArrows();
		}
		if(this._pendingFile)
		{
			if(typeof this._pendingFile == 'string')
			{
				this.selectFile(this._pendingFile);
			}else if(this._pendingFile.length){
				for(var f=0;f<this._pendingFile.length; f++){
					this.selectFile(this._pendingFile[f], true);
				}
			}
			this.hasFocus = true;
			this._pendingFile = null;
		}	
		if(this.hasFocus){
			this._ajaxplorer.foldersTree.blur();
			this._ajaxplorer.sEngine.blur();
			this._ajaxplorer.actionBar.blur();
			this.focus();
		}
		else{
			this._ajaxplorer.sEngine.blur();
			this._ajaxplorer.actionBar.blur();
			this._ajaxplorer.foldersTree.focus();
		}
		ajaxplorer.getActionBar().fireContextChange();
		ajaxplorer.getActionBar().fireSelectionChange();
		if(modal.pageLoading) modal.updateLoadingProgress('List Loaded');
	},
	
	xmlNodeToTableRow: function(xmlNode){
		var newRow = document.createElement("tr");
		var tBody = this._htmlElement.getElementsBySelector("tbody")[0];
		for(i=0;i<xmlNode.attributes.length;i++)
		{
			newRow.setAttribute(xmlNode.attributes[i].nodeName, xmlNode.attributes[i].nodeValue);
		}
		var attributeList = $A([]);
		this.columnsDef.each(function(column){
			attributeList.push(column.attributeName);
		});
		attributeList.each(function(s){
			var tableCell = document.createElement("td");
			if(s == "text")
			{
				innerSpan = document.createElement("span");
				innerSpan.setAttribute("style", "cursor:default;");
				$(innerSpan).addClassName("list_selectable_span");
				// Add icon
				var imgString = "<img src=\""+ajxpResourcesFolder+"/images/crystal/mimes/16/"+xmlNode.getAttribute('icon')+"\" ";
				imgString =  imgString + "width=\"16\" height=\"16\" hspace=\"1\" vspace=\"2\" align=\"ABSMIDDLE\" border=\"0\"> " + xmlNode.getAttribute(s);
				innerSpan.innerHTML = imgString;			
				tableCell.appendChild(innerSpan);
				$(innerSpan).setStyle({display:'block'});
				$(innerSpan).setAttribute('filename', newRow.getAttribute('filename'));
				if(!xmlNode.getAttribute("is_recycle") || xmlNode.getAttribute("is_recycle") != "1"){
					var newDrag = new AjxpDraggable(innerSpan, {revert:true,ghosting:true,scroll:'tree_container'});
					this.allDraggables[this.allDraggables.length] = newDrag;
				}
				if(xmlNode.getAttribute("is_file") == "0")
				{
					AjxpDroppables.add(innerSpan);
					this.allDroppables[this.allDroppables.length] = innerSpan;
				}			
			}
			else
			{
				tableCell.innerHTML = xmlNode.getAttribute(s);
			}
			newRow.appendChild(tableCell);
		}.bind(this));	
		tBody.appendChild(newRow);
	},
	
	
	xmlNodeToDiv: function(xmlNode){
		var newRow = document.createElement("div");	
		$(newRow).addClassName("thumbnail_selectable_cell");
		for(i=0;i<xmlNode.attributes.length;i++)
		{
			newRow.setAttribute(xmlNode.attributes[i].nodeName, xmlNode.attributes[i].nodeValue);
		}
	
		var innerSpan = document.createElement("span");
		innerSpan.setAttribute("style", "cursor:default;");	
		if(xmlNode.getAttribute("is_image") == "1")
		{
			this._crtImageIndex ++;
			var imgIndex = this._crtImageIndex;
			var textNode = xmlNode.getAttribute("text");
			var imgString = "<img id=\"ajxp_image_"+imgIndex+"\" src=\""+ajxpResourcesFolder+"/images/crystal/mimes/64/image.png\" width=\"64\" height=\"64\" style=\"margin:5px;\" align=\"ABSMIDDLE\" border=\"0\" is_loaded=\"false\"/><div class=\"thumbLabel\" title=\""+textNode+"\">"+textNode+"</div>";
			var width = xmlNode.getAttribute("image_width");
			var height = xmlNode.getAttribute("image_height");		
			var sizeString, marginTop, marginHeight, newHeight, newWidth;
			if(width >= height){
				sizeString = "width=\"64\"";
				newWidth = 64;
				newHeight = parseInt(height / width * 64);
				marginTop = parseInt((64 - newHeight)/2) + 5;
				marginBottom = 64+10-newHeight-marginTop-1;
				sizeString += " style='margin: 5px;margin-top:"+marginTop+"px;margin-bottom:"+marginBottom+"px;'";
			}
			else
			{
				newHeight = 64;
				newWidth = parseInt(width / height * 64);
				marginTop = 5;
				marginBottom = 5;
				sizeString = "height=\"64\" style=\"margin: 5px;\"";
			}
			var crtIndex = this._crtImageIndex;		
			//var image = new Image();
			innerSpan.innerHTML = imgString;		
			newRow.appendChild(innerSpan);
			this._htmlElement.appendChild(newRow);
			
			var fileName = xmlNode.getAttribute('filename');
			var oImageToLoad = {
				index:"ajxp_image_"+crtIndex,
				filename:fileName, 
				rowObject:$(newRow), 
				height: newHeight, 
				width: newWidth, 
				marginTop: marginTop, 
				marginBottom: marginBottom
			};
			this.imagesHash.set(oImageToLoad.index, oImageToLoad);
			
		}
		else
		{
			// Add icon
			//if(xmlNode.getAttribute("is_file") == "0") src = "images/crystal/mimes/64/folder.png";
			//else 
			src = ajxpResourcesFolder+'/images/crystal/mimes/64/'+xmlNode.getAttribute('icon');
			var imgString = "<img src=\""+src+"\" ";
			imgString =  imgString + "width=\"64\" height=\"64\" align=\"ABSMIDDLE\" border=\"0\"><div class=\"thumbLabel\" title=\"" + xmlNode.getAttribute("text")+"\">" + xmlNode.getAttribute("text")+"</div>";
			innerSpan.innerHTML = imgString;		
			newRow.appendChild(innerSpan);
			this._htmlElement.appendChild(newRow);
		}
		try{
			var newDrag = new AjxpDraggable(newRow, {revert:true,ghosting:true});
			this.allDraggables[this.allDraggables.length] = newDrag;
		}catch(e){alert(e);}
		if(xmlNode.getAttribute("is_file") == "0")
		{
			AjxpDroppables.add(newRow);
			this.allDroppables[this.allDroppables.length] = newRow;
		}
	},
	
	resizeThumbnails: function(one_element){
			
		var defaultMargin = 5;
		var elList;
		if(one_element) elList = [one_element]; 
		else elList = this._htmlElement.getElementsBySelector('.thumbnail_selectable_cell');
		elList.each(function(element){
			var is_image = (element.getAttribute('is_image')=='1'?true:false);
			var image_element = element.getElementsBySelector('img')[0];		
			var label_element = element.getElementsBySelector('.thumbLabel')[0];
			var tSize = this._thumbSize;
			var tW, tH, mT, mB;
			if(is_image && image_element.getAttribute("is_loaded") == "true")
			{
				imgW = parseInt(element.getAttribute("image_width"));
				imgH = parseInt(element.getAttribute("image_height"));
				if(imgW > imgH)
				{				
					tW = tSize;
					tH = parseInt(imgH / imgW * tW);
					mT = parseInt((tW - tH)/2) + defaultMargin;
					mB = tW+(defaultMargin*2)-tH-mT-1;				
				}
				else
				{
					tH = tSize;
					tW = parseInt(imgW / imgH * tH);
					mT = mB = defaultMargin;
				}
			}
			else
			{
				if(tSize >= 64)
				{
					tW = tH = 64;
					mT = parseInt((tSize - 64)/2) + defaultMargin;
					mB = tSize+(defaultMargin*2)-tH-mT-1;
				}
				else
				{
					tW = tH = tSize;
					mT = mB = defaultMargin;
				}
			}
			image_element.setStyle({width:tW+'px', height:tH+'px', marginTop:mT+'px', marginBottom:mB+'px'});
			element.setStyle({width:tSize+25+'px', height:tSize+30+'px'});
			
			//var el_width = element.getWidth();
			var el_width = tSize + 25;
			var charRatio = 6;
			var nbChar = parseInt(el_width/charRatio);
			var label = new String(element.getElementsBySelector('.thumbLabel')[0].getAttribute('title'));
			//alert(element.getAttribute('text'));
			label_element.innerHTML = label.truncate(nbChar, '...');
			
		}.bind(this));
		
	},
	
	
	
	removeCurrentLines: function(){
		var rows;
		if(this._displayMode == "list") rows = $(this._htmlElement).getElementsBySelector('tr');
		else if(this._displayMode == "thumb") rows = $(this._htmlElement).getElementsBySelector('div');
		for(i=0; i<rows.length;i++)
		{
			if(this.isItem(rows[i])) rows[i].remove();
		}
	},
	
	setOnLoad: function()	{
		if(this.loading) return;
		var parentObject = Position.offsetParent($(this._htmlElement));	
		addLightboxMarkupToElement(parentObject);
		var img = document.createElement("img");
		img.src = ajxpResourcesFolder+'/images/loadingImage.gif';
		$(parentObject).getElementsBySelector("#element_overlay")[0].appendChild(img);
		this.loading = true;
	},
	
	removeOnLoad: function(){
		removeLightboxFromElement(Position.offsetParent($(this._htmlElement)));
		this.loading = false;
	},
	
	//
	// OVERRIDE CHANGE FUNCTION
	// 
	fireChange: function()
	{		
		//this._ajaxplorer.getActionBar().update();
		ajaxplorer.actionBar.fireSelectionChange();
		this._ajaxplorer.infoPanel.update();
	},
	
	//
	// OVERRIDE DBL CLICK FUNCTION
	// 
	fireDblClick: function (e) 
	{
		if(ajaxplorer.foldersTree.currentIsRecycle())
		{
			return; // DO NOTHING IN RECYCLE BIN
		}
		selRaw = this.getSelectedItems();
		if(!selRaw || !selRaw.length)
		{
			return; // Prevent from double clicking header!
		}
		isFile = selRaw[0].getAttribute('is_file');
		fileName = selRaw[0].getAttribute('filename');
		if(isFile == '1' || isFile=='true')
		{
			ajaxplorer.getActionBar().fireDefaultAction("file");
		}
		else
		{
			ajaxplorer.getActionBar().fireDefaultAction("dir", selRaw[0].getAttribute('filename'));
		}
	},
	
	getSelectedFileNames: function() {
		selRaw = this.getSelectedItems();
		if(!selRaw.length)
		{
			//alert('Please select a file!');
			return;
		}
		var tmp = new Array(selRaw.length);
		for(i=0;i<selRaw.length;i++)
		{
			tmp[i] = selRaw[i].getAttribute('filename');
		}
		return tmp;
	},
	
	getFilesCount: function() 
	{	
		return this.getItems().length;
	},
	
	
	fileNameExists: function(newFileName) 
	{	
		var allItems = this.getItems();
		if(!allItems.length)
		{		
			return false;
		}
		for(i=0;i<allItems.length;i++)
		{
			var crtFileName = getBaseName(allItems[i].getAttribute('filename'));
			if(crtFileName && crtFileName.toLowerCase() == getBaseName(newFileName).toLowerCase()) 
				return true;
		}
		return false;
	},
		
	selectFile: function(fileName, multiple)
	{
		if(!this.fileNameExists(fileName)) 
		{
			return;
		}
		var allItems = this.getItems();
		for(var i=0; i<allItems.length; i++)
		{
			if(getBaseName(allItems[i].getAttribute('filename')) == getBaseName(fileName))
			{
				this.setItemSelected(allItems[i], true);
			}
			else if(multiple==null)
			{
				this.setItemSelected(allItems[i], false);
			}
		}
		return;
	},
	
	getCurrentRep: function()
	{
		return this._currentRep;
	},
	
	getUserSelection: function()
	{
		return new UserSelection(this.getSelectedItems(), this._currentRep);
	},
	
	disableTextSelection: function(target)
	{
		if (typeof target.onselectstart)
		{ //IE route
			target.onselectstart=function(){return false;}
		}
		target.unselectable = "on";
		target.style.MozUserSelect="none";
	},
	
	keydown: function (event)
	{
		if(event.keyCode == 9 && !ajaxplorer.blockNavigation) return false;
		if(!this.hasFocus) return true;
		var keyCode = event.keyCode;
		if(this._displayMode == "list" && keyCode != Event.KEY_UP && keyCode != Event.KEY_DOWN && keyCode != Event.KEY_RETURN && keyCode != Event.KEY_END && keyCode != Event.KEY_HOME)
		{
			return true;
		}
		if(this._displayMode == "thumb" && keyCode != Event.KEY_UP && keyCode != Event.KEY_DOWN && keyCode != Event.KEY_LEFT && keyCode != Event.KEY_RIGHT &&  keyCode != Event.KEY_RETURN && keyCode != Event.KEY_END && keyCode != Event.KEY_HOME)
		{
			return true;
		}
		var items = this._selectedItems;
		if(items.length == 0) // No selection
		{
			return false;
		}
		Event.stop(event);
		var nextItem;
		var currentItem;
		var shiftKey = event['shiftKey'];
		currentItem = items[items.length-1];
		var allItems = this.getItems();
		var currentItemIndex = this.getItemIndex(currentItem);
		var selectLine = false;
		//ENTER
		if(event.keyCode == Event.KEY_RETURN)
		{
			for(var i=0; i<items.length; i++)
			{
				this.setItemSelected(items[i], false);
			}
			this.setItemSelected(currentItem, true);
			this.fireDblClick(null);
			return false;
		}
		if(event.keyCode == Event.KEY_END)
		{
			nextItem = allItems[allItems.length-1];
			if(shiftKey && this._multiple){
				selectLine = true;
				nextItemIndex = allItems.length -1;
			}
		}
		else if(event.keyCode == Event.KEY_HOME)
		{
			nextItem = allItems[0];
			if(shiftKey && this._multiple){
				selectLine = true;
				nextItemIndex = 0;
			}
		}
		// UP
		else if(event.keyCode == Event.KEY_UP)
		{
			if(this._displayMode == 'list') nextItem = this.getPrevious(currentItem);
			else{			
				 nextItemIndex = this.findOverlappingItem(currentItemIndex, false);
				 if(nextItemIndex != null){ nextItem = allItems[nextItemIndex];selectLine = true;}
			}
		}
		else if(event.keyCode == Event.KEY_LEFT)
		{
			nextItem = this.getPrevious(currentItem);
		}
		//DOWN
		else if(event.keyCode == Event.KEY_DOWN)
		{
			if(this._displayMode == 'list') nextItem = this.getNext(currentItem);
			else{
				 nextItemIndex = this.findOverlappingItem(currentItemIndex, true);
				 if(nextItemIndex != null){ nextItem = allItems[nextItemIndex];selectLine = true;}
			}
		}
		else if(event.keyCode == Event.KEY_RIGHT)
		{
			nextItem = this.getNext(currentItem);
		}
		
		if(nextItem == null)
		{
			return false;
		}
		if(!shiftKey || !this._multiple) // Unselect everything
		{ 
			for(var i=0; i<items.length; i++)
			{
				this.setItemSelected(items[i], false);
			}		
		}
		else if(selectLine)
		{
			if(nextItemIndex >= currentItemIndex)
			{
				for(var i=currentItemIndex+1; i<nextItemIndex; i++) this.setItemSelected(allItems[i], !allItems[i]._selected);
			}else{
				for(var i=nextItemIndex+1; i<currentItemIndex; i++) this.setItemSelected(allItems[i], !allItems[i]._selected);
			}
		}
		this.setItemSelected(nextItem, !nextItem._selected);
		return false;
	},
	
	findOverlappingItem: function(currentItemIndex, bDown)
	{	
		if(!bDown && currentItemIndex == 0) return;
		var allItems = this.getItems();
		if(bDown && currentItemIndex == allItems.length - 1) return;
		
		var element = $(allItems[currentItemIndex]);	
		var pos = Position.cumulativeOffset(element);
		var dims = Element.getDimensions(element);
		var searchingPosX = pos[0] + parseInt(dims.width/2);
		if(bDown){
			var searchingPosY = pos[1] + parseInt(dims.height*3/2);
			for(var i=currentItemIndex+1; i<allItems.length;i++){
				if(Position.within($(allItems[i]), searchingPosX, searchingPosY))
				{
					return i;
				}
			}
			return null;
		}else{
			var searchingPosY = pos[1] - parseInt(dims.height/2);
			for(var i=currentItemIndex-1; i>-1; i--){
				if(Position.within($(allItems[i]), searchingPosX, searchingPosY))
				{
					return i;
				}
			}
			return null;
		}
	},	
	
	isItem: function (node) {
		if(this._displayMode == "list")
		{
			return node != null && ( node.tagName == "TR" || node.tagName == "tr") &&
				( node.parentNode.tagName == "TBODY" || node.parentNode.tagName == "tbody" )&&
				node.parentNode.parentNode == this._htmlElement;
		}
		if(this._displayMode == "thumb")
		{
			return node != null && ( node.tagName == "DIV" || node.tagName == "div") && 
				node.parentNode == this._htmlElement;
		}
	},
	
	/* Indexable Collection Interface */
	
	getItems: function () {
		if(this._displayMode == "list")
		{
			return this._htmlElement.rows;
		}
		if(this._displayMode == "thumb")
		{
			var tmp = [];
			var j = 0;
			var cs = this._htmlElement.childNodes;
			var l = cs.length;
			for (var i = 0; i < l; i++) {
				if (cs[i].nodeType == 1)
					tmp[j++] = cs[i]
			}
			return tmp;
		}
	},
	
	getItemIndex: function (el) {
		if(this._displayMode == "list")
		{
			return el.rowIndex;
		}
		if(this._displayMode == "thumb")
		{
			var j = 0;
			var cs = this._htmlElement.childNodes;
			var l = cs.length;
			for (var i = 0; i < l; i++) {
				if (cs[i] == el)
					return j;
				if (cs[i].nodeType == 1)
					j++;
			}
			return -1;		
		}
	},
	
	getItem: function (nIndex) {
		if(this._displayMode == "list")
		{
			return this._htmlElement.rows[nIndex];
		}
		if(this._displayMode == "thumb")
		{
			var j = 0;
			var cs = this._htmlElement.childNodes;
			var l = cs.length;
			for (var i = 0; i < l; i++) {
				if (cs[i].nodeType == 1) {
					if (j == nIndex)
						return cs[i];
					j++;
				}
			}
			return null;
		}
	}

/* End Indexable Collection Interface */
});