function hover_menu(obj,sub_menu_id,e) {
	try
	{
		addClass(obj,"hover_menu");
		switch(e.type)
		{
			case "mouseover":
				try {
					document.getElementById(sub_menu_id).style.display = "block";
				}
				catch(e){}
			break;
			case "mouseout":
				try {
					document.getElementById(sub_menu_id).style.display = "none";
				}
				catch(e){}
			break;
		}
	}
	catch(e) {}
}

function hover_sub_menu(obj) {
	try {
		addClass(obj,"hover_sub_menu");
	}
	catch(e) {}
}