loadTopMenu = function() 
	{   
	if (document.all&&document.getElementById) 
	 {      
	  menunavParent = document.getElementById("nav");       
	   for (x=0; x < menunavParent.childNodes.length; x++) 
		 {      
			menunode = menunavParent.childNodes[x];         
			   if (menunode.nodeName=="LI") 
				 {          
				  menunode.onmouseover=function() 
					{               
					this.className+=" over";            
					}           
					menunode.onmouseout=function() 
					{               
					  this.className=this.className.replace(" over", "");
		  }
			   }
			}
		 }
	}
	window.onload=loadTopMenu;