/***********************************************
* Contractible Headers script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use. Last updated Oct 21st, 2003.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
var mais = "";
var menos = "";
var imgMa;
var imgMe;

function preload(){
	if(document.images){
		menos = new Image(9,9);
		mais = new Image(9,9);
		menos.src = imgMe;
		mais.src = imgMa;
	}
}

function mostra(did){
	imagen = "img"+did;
	if (document.getElementById(did).style.display=='none'){
		document.getElementById(imagen).src=imgMe;
	}
	else {
		document.getElementById(imagen).src=imgMa;
	}
}

var enablepersist="on" //Enable saving state of content structure using session cookies? (on/off)
var collapseprevious="no" //Collapse previously open content when opening present? (yes/no)

if (document.getElementById){
	document.write('<style type="text/css">')
	document.write('.switchcontent{display:none;}')
	document.write('</style>')
}

function getElementbyClass(classname){
	ccollect=new Array()
	var inc=0
	var alltags=document.all? document.all : document.getElementsByTagName("*")
	for (i=0; i<alltags.length; i++){
		if (alltags[i].className==classname)
	ccollect[inc++]=alltags[i]
	}
}

function contractcontent(omit,imag){
	var inc=0
	while (ccollect[inc]){
		if (ccollect[inc].id!=omit) {
		ccollect[inc].style.display="none"
		primeiro = ccollect[0].id;
		if(imag) { if(ccollect[inc].style.display="none"){document.getElementById("img"+ccollect[inc].id).src=imgMa;}}
		//if(imag) { mostra(ccollect[inc].id) }
		//alert(ccollect[inc].id)
		//alert(imgMe)
		}
		inc++
	}
}

function expandcontent(cid,imag){
	if (typeof ccollect!="undefined"){
		if (collapseprevious=="yes")
		contractcontent(cid,imag)
		if(imag) {mostra(cid)}
		document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
	}
}

function revivecontent(){
	if (marcador == true){ contractcontent("omitnothing",true) } else { contractcontent("omitnothing") }
	//contractcontent("omitnothing",true)
	selectedItem=getselectedItem()
	selectedComponents=selectedItem.split("|")
	for (i=0; i<selectedComponents.length-1; i++)
		document.getElementById(selectedComponents[i]).style.display="block"
	    if (selectedComponents[0]){document.getElementById("img"+selectedComponents[0]).src=imgMe}
}

function get_cookie(Name) { 
	var search = Name + "="
	var returnvalue = "";
	if (document.cookie.length > 0) {
		offset = document.cookie.indexOf(search)
	if (offset != -1) { 
		offset += search.length
		end = document.cookie.indexOf(";", offset);
	if (end == -1) end = document.cookie.length;
		returnvalue=unescape(document.cookie.substring(offset, end))
	}
}
return returnvalue;
}

function getselectedItem(){
	if (get_cookie(window.location.pathname) != ""){
		selectedItem=get_cookie(window.location.pathname)
	return selectedItem
	}
	else
	return ""
}

function saveswitchstate(){
	var inc=0, selectedItem=""
	while (ccollect[inc]){
		if (ccollect[inc].style.display=="block")
	selectedItem+=ccollect[inc].id+"|"
	inc++
}

	document.cookie=window.location.pathname+"="+selectedItem
}

function do_onload(){
	getElementbyClass("switchcontent")
	if (enablepersist=="on" && typeof ccollect!="undefined")
		revivecontent()
		preload()
}


if (window.addEventListener)
window.addEventListener("load", do_onload, false)
else if (window.attachEvent)
window.attachEvent("onload", do_onload)
else if (document.getElementById)
window.onload=do_onload

if (enablepersist=="on" && document.getElementById)
window.onunload=saveswitchstate