function initMenu() {
	var nav = document.getElementById("navigation");
	if (nav) {
		var uls = nav.getElementsByTagName("ul");
		for (i = 0; i < uls.length; i++)
		{
			if (uls[i].parentNode.tagName == "LI") {
				_parent = uls[i].parentNode;
				
				var div = document.createElement("div");
				
				var span = document.createElement("span");
				span.className = "bg-t";
				div.appendChild(span);
				
				div.appendChild(uls[i]);
				
				span = document.createElement("span");
				span.className = "bg-b";
				div.appendChild(span);
				
				_parent.appendChild(div);
			}
		}
	}
}

function initNav() {
	var nav = document.getElementById("navigation");
	if (nav) {
		var lis = nav.getElementsByTagName("li");
		for (i = 0; i < lis.length; i++)
		{
			if (lis[i].parentNode.parentNode == nav)
			{
				lis[i].onmouseover = function() {
						this.className += " hover";
				};
				lis[i].onmouseout = function() {
						this.className = this.className.replace("hover", "");
				};
			}
		}
	}
}
if (window.addEventListener) {
	window.addEventListener("load", initMenu, false);
}
else if (window.attachEvent) {
	window.attachEvent("onload", initMenu);
	window.attachEvent("onload", initNav);
}