// This function assigns a style to the menu items in order to 
  // fix the drop-down lists for IE6, which don't support "li:hover"
  sfHover = function() {
    if (document.getElementById("nav") != 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);