function popup(url)
	{
	Fenster = window.open(url,"Details","width=640,height=500,screenX=50,screenY=50,scrollbars=yes");
	Fenster.focus();
	}

function change2(url)
	{
	top.menu.location.href = 'menu_' + url;
	top.content.location.href = url;
	}