function toggle_menu(idmenu)
{
	var btn = document.getElementById("btn"+idmenu);
	var menu = document.getElementById("menu"+idmenu);
	
	if (menu != undefined)
	{
		if (menu.style.display == 'none')
		{
			btn.className = "menu-on";
			menu.style.top = (btn.offsetTop+5)+"px";
			menu.style.left = (btn.offsetLeft+214)+"px";
			menu.style.display='';
		}
		else
		{
			btn.className = "menu-off";
			menu.style.display='none';
		}
	}
}