function IEHoverPseudo() 
{
	var navItems = document.getElementById("menu").getElementsByTagName("li");
	
	for (var i=0; i<navItems.length; i++) 
	{
		if(navItems[i].className == "tab") 
		{
			navItems[i].onmouseover = function() 
			{ 
				this.className += " over"; 
			}
			navItems[i].onmouseout = function() 
			{ 
				this.className = "tab"; 
			}
		}
	}	
}
window.onload = IEHoverPseudo;