//dynamic top navigation
initNav = function() {
	var navRoot = document.getElementById("nav");
	if (navRoot!=null)
	{		
		var lis = navRoot.getElementsByTagName("li");
		for (var i=0; i<lis.length; i++)
		{
			lis[i].onmouseover = function()
			{
				this.className += " hover";
			}
			lis[i].onmouseout = function()
			{
				this.className = this.className.replace("hover", "");
			}
		}
	}
}
if (document.all && window.attachEvent)
	attachEvent("onload", initNav);