var uniquepageid=window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, "")

function colapso(divId, tiempo, persistexpand, initstate){
	this.divId=divId
	this.divObj=document.getElementById(divId)
	this.divObj.style.overflow="hidden"
	this.timelength=tiempo
	this.initstate=(typeof initstate!="undefined" && initstate=="modulo")? "modulo" : "contract"
	this.isExpanded=colapso.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
		colapso.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 colapso) 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=0 //just colapso content if CSS "height" attribute available
	if (persistexpand)
		colapso.dotask(window, function(){colapso.setCookie(uniquepageid+"-"+thisobj.divId, thisobj.isExpanded)}, "unload")
}

colapso.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 //colapso content
		this.divObj.style.visibility="visible"
	}
	else
		this.divObj.style.height=this.contentheight+"px"
}


colapso.prototype._slideengine=function(direction){
	var elapsed=new Date().getTime()-this.startTime
	var thisobj=this
	if (elapsed<this.timelength){
		var distancepercent=(direction=="mostrar")? colapso.curveincrement(elapsed/this.timelength) : 1-colapso.curveincrement(elapsed/this.timelength)
	this.divObj.style.height=distancepercent * this.contentheight +"px"
	this.runtimer=setTimeout(function(){thisobj._slideengine(direction)}, 10)
	}
	else{
		this.divObj.style.height=(direction=="mostrar")? this.contentheight+"px" : 0
		this.isExpanded=(direction=="mostrar")? "yes" : "no"
		this.runtimer=null
	}
}

// Codigo Mostrar
colapso.prototype.mostrar=function(){
	if (typeof this.runtimer=="undefined" || this.runtimer==null){
		if (isNaN(this.contentheight))
			alert("Please wait until document has fully loaded then click again")
		
		///////// SUBIR EN UNO CODIGO QUE YO LE PUSE
		if (parseInt(this.divObj.style.height)==this.contentheight){
			this.startTime=new Date().getTime()
			this._slideengine("ocultar")
		}			
		///////// SUBIR EN UNO CODIGO QUE YO LE PUSE
			
		else if (parseInt(this.divObj.style.height)==0){
			this.startTime=new Date().getTime()
			this._slideengine("mostrar")
		}
	}
}

// Codigo Ocultar
colapso.prototype.ocultar=function(){
	if (typeof this.runtimer=="undefined" || this.runtimer==null){
		if (isNaN(this.contentheight))
			alert("Please wait until document has fully loaded then click again")
		else if (parseInt(this.divObj.style.height)==this.contentheight){
			this.startTime=new Date().getTime()
			this._slideengine("ocultar")
		}
	}
}

colapso.prototype.slideit=function(){
	if (isNaN(this.contentheight))
		alert("Please wait until document has fully loaded then click again")
	else if (parseInt(this.divObj.style.height)==0)
		this.mostrar()
	else if (parseInt(this.divObj.style.height)==this.contentheight)
		this.ocultar()
}

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

colapso.curveincrement=function(percent){
	return (1-Math.cos(percent*Math.PI)) / 2
}

colapso.dotask=function(target, functionref, tasktype){
	var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false)
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref)
}

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

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