function initNav(){
	var menu = document.getElementById("navigation");
	if (menu){
		var nodes = menu.getElementsByTagName("a");
		for(var i=0; i<nodes.length; i++) {
			if (nodes[i].parentNode.getElementsByTagName('ul')[0]) {
				nodes[i].onclick = function () {
					if(this.parentNode.className.indexOf("open") !=-1) {
						this.parentNode.className = this.parentNode.className.replace("open", "");
					}
					else {
						this.parentNode.className += "open";
					}
					return false;
				}
			}
		}
	}
}
if (window.addEventListener){window.addEventListener("load", initNav, false);}
else if (window.attachEvent){window.attachEvent("onload", initNav);}