function xxx()
{
w	= screen.availWidth;
h	= screen.availHeight;
neu = open("","xxx","width="+w+",height="+h+",left=0,top=0,resizable=yes,scrollbars=yes,toolbar=yes,location=no,status=no");
neu.focus();
}
function impressum()
{
neu=open('','impressum','width=430,height=320');
neu.focus();
}