function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
oldonload();
func();
}
}
}



var menu={

collapseMenu:function(node)
{
if (!document.getElementById) return false;
if (!document.getElementById("menu")) return false;
if (!node) node = document.getElementById("menu");

if (node.childNodes.length > 0)
{
for (var i=0; i<node.childNodes.length; i++)
{
var child = node.childNodes[i];
if (child.nodeName == "UL")
{
child.style.display = "none";
}
menu.collapseMenu(child);
}
}
},

prepareMenu:function()
{
if (!document.getElementById || !document.getElementsByTagName) return false;
if (!document.getElementById("menu")) return false;

var links = document.getElementById("menu").getElementsByTagName("a");
for (var i=0; i<links.length; i++)
{
links[i].onclick = function()
{
menu.toggleMenu(this.parentNode.getElementsByTagName("UL")[0], this.href);
return false;
}
}
},

toggleMenu:function(node, link)
{
if (!document.getElementById) return false;
if (!link) return false;
if (!node) location.href = link.href;

if (node.style.display == "")
{
node.style.display = "none";
} else {
node.style.display = "";
}
}

//end menu
}

addLoadEvent(menu.collapseMenu);
addLoadEvent(menu.prepareMenu);