sfHover = function() {    
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); 
			
function tab() {
var sublink = document.getElementById("sublink"); 
var submenu = document.getElementById("submenu"); 
var lastlink = document.getElementById("lastsub");
sublink.onfocus=function() {
submenu.setAttribute("class", "subshow"); 
submenu.setAttribute("className", "subshow"); 
}
lastlink.onblur=function() {
submenu.setAttribute("class", "subhide"); 
submenu.setAttribute("className", "subhide"); 
}
}