function ddtabcontent(tabinterfaceid){
					this.tabinterfaceid=tabinterfaceid 
					this.tabs=document.getElementById(tabinterfaceid).getElementsByTagName("a") 
					this.enabletabpersistence=true
					this.hottabspositions=[] 
					this.currentTabIndex=0 
					this.subcontentids=[] 
					this.revcontentids=[] 
					this.selectedClassTarget="link" 
				}

				ddtabcontent.getCookie=function(Name){ 
				var re=new RegExp(Name+"=[^;]+", "i"); 
				if (document.cookie.match(re)) 
					return document.cookie.match(re)[0].split("=")[1] 
				return ""
				}

				ddtabcontent.setCookie=function(name, value){
				document.cookie = name+"="+value+";path=/" 
				}

				ddtabcontent.prototype={

					expandit:function(tabid_or_position){ 
					this.cancelautorun() 
					var tabref=""
					try{
						if (typeof tabid_or_position=="string" && document.getElementById(tabid_or_position).getAttribute("rel")) 
							tabref=document.getElementById(tabid_or_position)
						else if (parseInt(tabid_or_position)!=NaN && this.tabs[tabid_or_position].getAttribute("rel")) 
							tabref=this.tabs[tabid_or_position]
					}
					catch(err){alert("Invalid Tab ID or position entered!")}
					if (tabref!="") 
						this.expandtab(tabref) 
					},

				cycleit:function(dir, autorun){ 
				if (dir=="next"){
					var currentTabIndex=(this.currentTabIndex<this.hottabspositions.length-1)? this.currentTabIndex+1 : 0
				}
				else if (dir=="prev"){
					var currentTabIndex=(this.currentTabIndex>0)? this.currentTabIndex-1 : this.hottabspositions.length-1
				}
				if (typeof autorun=="undefined") 
					this.cancelautorun() 
					this.expandtab(this.tabs[this.hottabspositions[currentTabIndex]])
				},

				setpersist:function(bool){ 
					this.enabletabpersistence=bool
				},

				setselectedClassTarget:function(objstr){ 
					this.selectedClassTarget=objstr || "link"
				},

				getselectedClassTarget:function(tabref){ 
					return (this.selectedClassTarget==("linkparent".toLowerCase()))? tabref.parentNode : tabref
				},

				urlparamselect:function(tabinterfaceid){
				var result=window.location.search.match(new RegExp(tabinterfaceid+"=(\\d+)", "i")) //check for "?tabinterfaceid=2" in URL
				return (result==null)? null : parseInt(RegExp.$1) 
			},

			expandtab:function(tabref){
			var subcontentid=tabref.getAttribute("rel") 
		
			var associatedrevids=(tabref.getAttribute("rev"))? ","+tabref.getAttribute("rev").replace(/\s+/, "")+"," : ""
			this.expandsubcontent(subcontentid)
			this.expandrevcontent(associatedrevids)
			for (var i=0; i<this.tabs.length; i++){ 
				this.getselectedClassTarget(this.tabs[i]).className=(this.tabs[i].getAttribute("rel")==subcontentid)? "selected" : ""
			}
			if (this.enabletabpersistence) 
				ddtabcontent.setCookie(this.tabinterfaceid, tabref.tabposition)
			this.setcurrenttabindex(tabref.tabposition) 
			},

			expandsubcontent:function(subcontentid){
			for (var i=0; i<this.subcontentids.length; i++){
			var subcontent=document.getElementById(this.subcontentids[i]) 
			subcontent.style.display=(subcontent.id==subcontentid)? "block" : "none" 
			}
			},

			expandrevcontent:function(associatedrevids){
				var allrevids=this.revcontentids
				for (var i=0; i<allrevids.length; i++){ 
				document.getElementById(allrevids[i]).style.display=(associatedrevids.indexOf(","+allrevids[i]+",")!=-1)? "block" : "none"
			}
			},

			setcurrenttabindex:function(tabposition){ 
			for (var i=0; i<this.hottabspositions.length; i++){
			if (tabposition==this.hottabspositions[i]){
				this.currentTabIndex=i
				break
			}
			}
		},

		autorun:function(){
		this.cycleit("next", true)
		},

		cancelautorun:function(){
		if (typeof this.autoruntimer!="undefined")
			clearInterval(this.autoruntimer)
		},

		init:function(automodeperiod){
		var persistedtab=ddtabcontent.getCookie(this.tabinterfaceid) 
		var selectedtab=-1 
		var selectedtabfromurl=this.urlparamselect(this.tabinterfaceid) 
		this.automodeperiod=automodeperiod || 0
		for (var i=0; i<this.tabs.length; i++){
			this.tabs[i].tabposition=i 
			if (this.tabs[i].getAttribute("rel")){
				var tabinstance=this
				this.hottabspositions[this.hottabspositions.length]=i 
				this.subcontentids[this.subcontentids.length]=this.tabs[i].getAttribute("rel") 
				this.tabs[i].onclick=function(){
					tabinstance.expandtab(this)
					tabinstance.cancelautorun() 
					return false
				}
				if (this.tabs[i].getAttribute("rev")){ 
					this.revcontentids=this.revcontentids.concat(this.tabs[i].getAttribute("rev").split(/\s*,\s*/))
				}
				if (selectedtabfromurl==i || this.enabletabpersistence && selectedtab==-1 && parseInt(persistedtab)==i || 			!this.enabletabpersistence && selectedtab==-1 && this.getselectedClassTarget(this.tabs[i]).className=="selected"){
					selectedtab=i 
				}
			}
		} 
		if (selectedtab!=-1) 
			this.expandtab(this.tabs[selectedtab]) 
		else 
			this.expandtab(this.tabs[this.hottabspositions[0]]) 
		if (parseInt(this.automodeperiod)>500 && this.hottabspositions.length>1){
			this.autoruntimer=setInterval(function(){tabinstance.autorun()}, this.automodeperiod)
		}
		} 
		}