function popup(URL,titel,width,height) {
 msgWindow=open(URL,titel,'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width='+width+',height='+height+',left = 10,top = 10');
 if (msgWindow.opener === null)
 {
  msgWindow.opener = self;
 }
}