function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function newslpopup() { 
  newsl=window.open("http://www.knusthamburg.de/newsletter/?p=subscribe&id=1","Fly","width=450,height=480,screenX=350,screenY=200,locationbar=no,menubar=no,resizable=no"); 
  newsl.focus();
}