function initNav()
{
	var nav = document.getElementById("main-nav");
	if(nav)
	{
		var lis = nav.getElementsByTagName("li");
		for (var i=0; i<lis.length; i++)
		{
			lis[i].onmouseover = function()
			{
				this.className += "hover";
				if(this.parentNode.id == "main-nav")
				{
					var div = this.getElementsByTagName("div").item(0);
					if(div)
						div.style.width = this.getElementsByTagName("div").item(1).clientWidth + "px";
				}
			}
			lis[i].onmouseout = function()
			{
				this.className = this.className.replace("hover", "");
			}
		}
	}
}
if (window.addEventListener)
	window.addEventListener("load", initNav, false);
else if (window.attachEvent)
	window.attachEvent("onload", initNav);