//dynamic top navigation
initNav = function() {
	var navRoot = document.getElementById("navigation");
	var mask = document.getElementById("text-box");
	if ( navRoot )
	{
		var lis = navRoot.getElementsByTagName("li");
		for (var i=0; i<lis.length; i++)
		{
			lis[i].onmouseover = function()
			{
				this.className += " hover";
				if ( this.getElementsByTagName("ul").length == 1 ) mask.className = "masked";
			}
			lis[i].onmouseout = function()
			{
				name = this.className.replace("hover", "");
				this.className = name;
				mask.className = "";
			}
		}
	}
}
if (window.addEventListener)
	window.addEventListener("load", initNav, false);
else if (window.attachEvent)
	window.attachEvent("onload", initNav);