function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0	
  var i=0;
  var j=0 ;
  var x=0;
  var a=MM_swapImage.arguments;
  document.MM_sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){ document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


var menu=["menu_principal"];

function buildsubmenus_horizontal(){
/*for (var i=0; i<menu.length; i++){
  var ultags=document.getElementById(menu[i]).getElementsByTagName("ul")
    for (var t=0; t<ultags.length; t++){
	  if (ultags[t].parentNode.parentNode.id==menu[i]){ //if this is a first level submenu
		ultags[t].style.top=ultags[t].parentNode.offsetHeight+"px" //dynamically position first level submenus to be height of main menu item
		ultags[t].parentNode.getElementsByTagName("a")[0].className="mainfoldericon"
	  }
	  else{ //else if this is a sub level menu (ul)
		ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth+"px" //position menu to the right of menu item that activated it
		ultags[t].style.top=ultags[t-1].getElementsByTagName("a")[0].offsetTop+"px"
		ultags[t].parentNode.getElementsByTagName("a")[0].className="subfoldericon"
	  }
	  ultags[t].parentNode.onmouseover=function(){
		this.getElementsByTagName("ul")[0].style.visibility="visible"
	  }
	  ultags[t].parentNode.onmouseout=function(){
		this.getElementsByTagName("ul")[0].style.visibility="hidden"
	  }
    }
  }*/
}

/* ================================================================ 
This copyright notice must be untouched at all times.

The original version of this script and the associated (x)html
is available at http://www.stunicholls.com/menu/tree_frog_vertical.html
Copyright (c) 2005-2007 Stu Nicholls. All rights reserved.
This script and the associated (x)html may be modified in any 
way to fit your requirements.
=================================================================== */

clickMenu = function() {

	var getEls = document.getElementById(menu).getElementsByTagName("LI");
	var getAgn = getEls;

	for (var i=0; i<getEls.length; i++) {
		getEls[i].onclick=function() {
			for (var x=0; x < getAgn.length; x++) {
			getAgn[x].className=getAgn[x].className.replace("unclick", "");
			getAgn[x].className=getAgn[x].className.replace("click", "unclick");					
			}
		if ((this.className.indexOf('unclick'))!=-1) {
			this.className=this.className.replace("unclick", "");;
			}
			else {
			this.className+=" click";
			}
		}
		getEls[i].onmouseover=function() {			
			this.className+=" menu_hover";			
		}
		getEls[i].onmouseout=function() {
			this.className=this.className.replace("menu_hover", "");
		}		
	}
}

/*
if (window.addEventListener)
window.addEventListener("load", buildsubmenus_horizontal, false)
else if (window.attachEvent)
window.attachEvent("onload", buildsubmenus_horizontal)
*/

if (window.addEventListener)
window.addEventListener("load", clickMenu, false)
else if (window.attachEvent)
window.attachEvent("onload", clickMenu)