//submenu
sfHover = function()
{

	var sidebar = document.getElementById("nav")
	if (sidebar != null) {
		var sfEls = document.getElementById("nav").getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++)
		{
			sfEls[i].onmouseover = function()
			{
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout = function()
			{
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
}
if (window.attachEvent) { window.attachEvent("onload", sfHover); }