function buildMenu()
{
	if (document.all && document.getElementById) 
	{
	    menu = document.getElementById('main-menu');
		navItems = menu.getElementsByTagName("li");		
		for (i=0; i < navItems.length; i++) 
		{
			node = navItems[i];
			node.onmouseover = function() { this.className+=" over"; }
			node.onmouseout  = function() { this.className=this.className.replace(" over", ""); }
		}
	}
}