function menuFix() { 
 var sfEls = document.getElementById("nav").getElementsByTagName("li"); 
 for (var i=0; i<sfEls.length; i++) { 
  sfEls[i].onmouseover=function() { 
  this.className+=(this.className.length>0? " ": "") + "sfhover"; 
  } 
  sfEls[i].onMouseDown=function() { 
  this.className+=(this.className.length>0? " ": "") + "sfhover"; 
  } 
  sfEls[i].onMouseUp=function() { 
  this.className+=(this.className.length>0? " ": "") + "sfhover"; 
  } 
  sfEls[i].onmouseout=function() { 
  this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"),  

""); 
  } 
 } 
} 
window.onload=menuFix;