<!--
/** 
 *  Based on Folding Menu Tree 
 *  Dynamic Drive (www.dynamicdrive.com)
 */

var head="display:''";
img1=new Image();
img1.src="fold.gif";
img2=new Image();
img2.src="open.gif";

function change(){
   if(!document.all)
      return
   if (event.srcElement.id=="foldheader") {
      var srcIndex = event.srcElement.sourceIndex
      var nested = document.all[srcIndex+1]
      if (nested.style.display=="none") {
         nested.style.display=''
         event.srcElement.style.listStyleImage="url(Iconos/open.gif)"
      }
      else {
         nested.style.display="none"
         event.srcElement.style.listStyleImage="url(Iconos/fold.gif)"
      }
   }
}

document.onclick=change

//-->