/***********************************************
* Switch Content script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use. Last updated April 2nd, 2005.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

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)

var contractsymbol='<img src="' + Menu_Dir_plantilla + 'images/menos.gif" align="center"> ' //HTML for contract symbol. For image, use: <img src="whatever.gif">
var expandsymbol='<img src="' + Menu_Dir_plantilla + 'images/mas.gif" align="center"> ' //HTML for expand symbol.


if (document.getElementById){
document.write('<style type="text/css">')
document.write('.switchcontent{display:none;margin: -9px 0px -3px 15px;}')
document.write('</style>')
}

function getElementbyClass(rootobj, classname){
var temparray=new Array()
var inc=0
for (i=0; i<rootobj.length; i++){
if (rootobj[i].className==classname)
temparray[inc++]=rootobj[i]
}
return temparray
}

function sweeptoggle(ec){
var thestate=(ec=="expand")? "block" : "none"
var inc=0
while (ccollect[inc]){
ccollect[inc].style.display=thestate
inc++
}
revivestatus()
}


function contractcontent(omit){
var inc=0
while (ccollect[inc]){
if (ccollect[inc].id!=omit)
ccollect[inc].style.display="none"
inc++
}
}

function expandcontent(curobj, cid){
var spantags=curobj.getElementsByTagName("SPAN")
var showstateobj=getElementbyClass(spantags, "showstate")
if (ccollect.length>0){
if (collapseprevious=="yes")
contractcontent(cid)
document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
if (showstateobj.length>0){ //if "showstate" span exists in header
if (collapseprevious=="no")
showstateobj[0].innerHTML=(document.getElementById(cid).style.display=="block")? contractsymbol : expandsymbol
else
revivestatus()
}
}
}

function revivecontent(){
contractcontent("omitnothing")
selectedItem=getselectedItem()
selectedComponents=selectedItem.split("|")
for (i=0; i<selectedComponents.length-1; i++){
  if (document.getElementById(selectedComponents[i])!=null)
    document.getElementById(selectedComponents[i]).style.display="block"
  }
}

function revivestatus(){
var inc=0
while (statecollect[inc]){
if (ccollect[inc].style.display=="block")
statecollect[inc].innerHTML=contractsymbol
else
statecollect[inc].innerHTML=expandsymbol
inc++
}
}

function get_cookie(Name) { 
//es utilizado para identificar la base de la cookie y que no se mezcle en caso de
// volver a usar este scipt desde un pagina dinamica
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 SetCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue)
                 + ";expires="+expire.toGMTString();
}

function getselectedItem(){
if (get_cookie(getCoockieName()) != ""){
selectedItem=get_cookie(getCoockieName())
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=getCoockieName()+"="+selectedItem
}

function do_onload(){
  uniqueidn=getCoockieName()+"firsttimeload"
  var alltags=document.all? document.all : document.getElementsByTagName("*")
  ccollect=getElementbyClass(alltags, "switchcontent")
  statecollect=getElementbyClass(alltags, "showstate")
  if (enablepersist=="on" && ccollect.length>0){
    document.cookie=(get_cookie(uniqueidn)=="")? uniqueidn+"=1" : uniqueidn+"=0" 
    firsttimeload=(get_cookie(uniqueidn)==1)? 1 : 0 //check if this is 1st page load
    if (!firsttimeload)
      revivecontent()
  }
  if (ccollect.length>0 && statecollect.length>0)
    revivestatus()
}

//Generamos el nombre de la cookie para que se diferencie cuando esta recibe parametro por querystring

function getCoockieName(){

/*Nombre= new String(window.location);
fin =Nombre.indexOf("&",0)
if (fin<=0) fin=Nombre.length
parametro=Nombre.substring(Nombre.indexOf("?",0)+1,fin)
return window.location.pathname;// + parametro.replace("=","");*/
return window.location.hostname;
}


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