function initMenu(){
	var menu = document.getElementById("nav");
	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('click') != -1){
						this.parentNode.className = this.parentNode.className.replace('click','');
					}
					else{
						for(var i = 0; i  < nodes.length; i++) {
							if(nodes[i] != this) nodes[i].parentNode.className = nodes[i].parentNode.className.replace('click','');
						}
						this.parentNode.className += ' click';
					}
					return false;
				}
			}
			else{
				nodes[i].onclick = function (){
					if(this.parentNode.className.indexOf('click') != -1){
						this.parentNode.className = this.parentNode.className.replace('click','');
					}
					else{
						for(var i = 0; i  < nodes.length; i++) {
							if(nodes[i] != this) nodes[i].parentNode.className = nodes[i].parentNode.className.replace('click','');
						}
						this.parentNode.className += ' click';
					}
				}
			}
		}
	}
}


if (window.addEventListener){
	window.addEventListener("load", initMenu, false);
	}
else if (window.attachEvent){
	window.attachEvent("onload", initMenu);
	}