function rollover()
{
  if(!document.getElementById || !document.createTextNode){return;}
  var n=document.getElementById('nav');
  if(!n){return;}
  var lis=n.getElementsByTagName('li');
  for (var i=0;i<lis.length;i++)
  {
    lis[i].onmouseover=function()
    {
      this.className=this.className?'cur':'over';
    }
    lis[i].onmouseout=function()
    {
       this.className=this.className=='cur'?'cur':'';
    }
  }
	
	if (document.all&&document.getElementById) {
	navRoot = document.getElementById("navigation");
	for (i=0; i<navRoot.childNodes.length; i++) {
	node = navRoot.childNodes[i];
	if (node.nodeName=="LI") {
	node.onmouseover=function() {
	this.className+=" over";
		}
		node.onmouseout=function() {
		this.className=this.className.replace(" over", "");
			}
			}
		}
 }
	
}

window.onload=rollover;