function menu(id)
{
	var i = 1;
	var menus = ["men1","men2","men3","men4","men5"];
	var submenus = ["sub1","sub2","sub3","sub4","sub5"];
	for(i=1; i<6; i++)
	{
	if( id==i )
		{		
		//$("menu"+i).show();
		Effect.BlindDown($("menu"+i), { duration: 1.0 });
		$("head"+i).addClassName("n-hover");
		//document.getElementById("head"+i).className = 'no_image';
		}
	else
		{
		//$("menu"+i).hide();
		Effect.BlindUp($("menu"+i), { duration: 1.0 });		
		$("head"+i).removeClassName("n-hover");
		//document.getElementById("head"+i).className = 'image';
		}
	}
}
function submenu(id)
{
	$("head"+i).addClassName("min_height");
}