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

sfHover2 = function() {
    if( document.getElementById("nav_vacancy") ) {
       var sfEls = document.getElementById("nav_vacancy").getElementsByTagName("LI");
       for (var i=0; i<sfEls.length; i++) {
           sfEls[i].onmouseover=function() {
               this.className+=" hover";
           }
           sfEls[i].onmouseout=function() {
               this.className=this.className.replace(new RegExp(" hover\\b"), "");
           }
       }
    }
}
if (window.attachEvent) window.attachEvent("onload", sfHover2);