window.onload=init;
function init(){
var menu=document.getElementById("submenu");
var c=menu.firstChild;
while(c){
if(c.nodeName=="LI"){
var cc=c.firstChild;
while(cc){
if(cc.nodeName=="UL"){cc.className="hidden";}
if(cc.nodeName=="DIV"){cc.onclick=changemenu;}
cc=cc.nextSibling;
}
}
c=c.nextSibling;
}
}

function changemenu(){
this.className=this.className=="active"?"":"active";
var n=this.nextSibling;
while(n){
if(n.nodeName=="UL") n.className=n.className=="hidden"?"":"hidden";
n=n.nextSibling;
}
return false;
}