sfHover = function() { 
var sfEls = document.getElementById("ja-mainnav").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);