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;

function menuon(num)
{
	var anum = document.getElementById("nav").getElementsByTagName("a");
	var mn=document.getElementById(num);
	for (var i=0; i<anum.length; i++)
	{
		anum[i].className="";
	}
	mn.className="onsub";
}