ie_menu_by_class = function() 
{
	if (document.all && document.getElementById) 
	{
		navRoot = document.getElementById("nav");
		
		for (i=0; i < navRoot.childNodes.length; i++) 
		{
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") 
			{
				node.onmouseover=function() 
				{
					if (this.className == "no")
					{
						this.className="no_over";
					}
				
					if (this.className == "act")
					{
						this.className="act_over";
					}
					
  				}
			 		
				node.onmouseout=function() 
				{
		 				if (this.className == "no_over")
						{
							this.className="no";
						}
						
						if (this.className == "act_over")
						{
							this.className="act";
						}
						//this.className=this.className.replace("_over", "");
						//this.className="no";
			   	}
   			}
  		}
 	}
}

window.onload = function () {

	ie_menu_by_class;
}