var uniquepageid=window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, "") //get current page path and name, used to uniquely identify this page for persistence feature

		function animatedcollapse(divId, animatetime, persistexpand, initstate){
			this.divId=divId
			this.divObj=document.getElementById(divId)
			this.divObj.style.overflow="hidden"
			this.timelength=animatetime
			this.initstate=(typeof initstate!="undefined" && initstate=="block")? "block" : "contract"
			this.isExpanded=animatedcollapse.getCookie(uniquepageid+"-"+divId) //"yes" or "no", based on cookie value
			this.contentheight=parseInt(this.divObj.style.height)
			var thisobj=this
			if (isNaN(this.contentheight)){ //if no CSS "height" attribute explicitly defined, get DIV's height on window.load
				animatedcollapse.dotask(window, function(){thisobj._getheight(persistexpand)}, "load")
				if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes" && this.isExpanded!="") //Hide DIV (unless div should be expanded by default, OR persistence is enabled and this DIV should be expanded)
					this.divObj.style.visibility="hidden" //hide content (versus collapse) until we can get its height
			}
			else if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes" && this.isExpanded!="") { 
				//Hide DIV (unless div should be expanded by default, OR persistence is enabled and this DIV should be expanded)
				this.divObj.style.height= '1px' //just collapse content if CSS "height" attribute available
				this.divObj.style.display = 'none';
			}
			if (persistexpand)
				animatedcollapse.dotask(window, function(){animatedcollapse.setCookie(uniquepageid+"-"+thisobj.divId, thisobj.isExpanded)}, "unload")
		}

		animatedcollapse.prototype._getheight=function(persistexpand){
			this.contentheight=this.divObj.offsetHeight
			if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes"){ //Hide DIV (unless div should be expanded by default, OR persistence is enabled and this DIV should be expanded)
				this.divObj.style.height=0 //collapse content
				this.divObj.style.visibility="visible"
			}
			else //else if persistence is enabled AND this content should be expanded, define its CSS height value so slideup() has something to work with
				this.divObj.style.height=this.contentheight+"px"
		}


		animatedcollapse.prototype._slideengine=function(direction){
			var elapsed=new Date().getTime()-this.startTime //get time animation has run
			var thisobj=this
			if (elapsed<this.timelength){ //if time run is less than specified length
				this.divObj.style.display='block';
				var distancepercent=(direction=="down")? animatedcollapse.curveincrement(elapsed/this.timelength) : 1-animatedcollapse.curveincrement(elapsed/this.timelength)
			if ((distancepercent * this.contentheight) > 0)
				this.divObj.style.height = distancepercent * this.contentheight +"px"
			this.runtimer=setTimeout(function(){thisobj._slideengine(direction)}, 20)
			}
			else{ //if animation finished
				this.divObj.style.height=(direction=="down")? this.contentheight+"px" : "1px"
				this.divObj.style.display=(direction!="down")? 'none' : 'block';
				this.isExpanded=(direction=="down")? "yes" : "no" //remember whether content is expanded or not
				this.runtimer=null
			}
		}


		animatedcollapse.prototype.slidedown=function(){
			if (typeof this.runtimer=="undefined" || this.runtimer==null){ //if animation isn't already running or has stopped running
				if (isNaN(this.contentheight)) //if content height not available yet (until window.onload)
					alert("Vent, venligst til siden er fædig med at indlæse og prøv derefter igen.")
				else if (parseInt(this.divObj.style.height) < 2){ //if content is collapsed
					this.startTime=new Date().getTime() //Set animation start time
					//this.divObj.style.display = 'block';
					this._slideengine("down")
				}
			}
		}

		animatedcollapse.prototype.slideup=function(){
			if (typeof this.runtimer=="undefined" || this.runtimer==null){ //if animation isn't already running or has stopped running
				if (isNaN(this.contentheight)) //if content height not available yet (until window.onload)
					alert("Vent, venligst til siden er fædig med at indlæse og prøv derefter igen.")
				else if (parseInt(this.divObj.style.height)==this.contentheight){ //if content is expanded
					this.startTime=new Date().getTime()
					this._slideengine("up")
				}
			}
		}

		animatedcollapse.prototype.slideit=function(){
			if (isNaN(this.contentheight)) //if content height not available yet (until window.onload)
				alert("Vent, venligst til siden er fædig med at indlæse og prøv derefter igen.")
			else if (parseInt(this.divObj.style.height) < 2)
				this.slidedown()
			else if (parseInt(this.divObj.style.height)==this.contentheight)
				this.slideup()
		}

		// -------------------------------------------------------------------
		// A few utility functions below:
		// -------------------------------------------------------------------

		animatedcollapse.curveincrement=function(percent){
			return (1-Math.cos(percent*Math.PI)) / 2 //return cos curve based value from a percentage input
		}


		animatedcollapse.dotask=function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
			var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
			if (target.addEventListener)
				target.addEventListener(tasktype, functionref, false)
			else if (target.attachEvent)
				target.attachEvent(tasktype, functionref)
		}

		animatedcollapse.getCookie=function(Name){ 
			var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
			if (document.cookie.match(re)) //if cookie found
				return document.cookie.match(re)[0].split("=")[1] //return its value
			return ""
		}

		animatedcollapse.setCookie=function(name, value){
				document.cookie = name+"="+value
		}