function wopen(url,winX,breite,hoehe) {
   win1 = window.open(url,winX,"width=" +breite+",height="+hoehe);
   check();
}
function check() {
   if (win1 == null) return;
   if (win1.focus != null) win1.focus();
}

function wClose() {
   window.close(self);
}