//Fix for <=IE6 which simulates the :hover pseudoclass on arbitrary elements
//(in this case, list items). This allows the dropdown menus to display properly.
//If the client has JavaScript disabled they can still navigate by using the 
//menus on the left of each content page.
sfHover = function() {
	var sfEls = document.getElementById("mainMenu").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);