function newsletter() {

  if (document.layers) open('http://hem.passagen.se/klas2/vgtones/newsletter/sub.htm', 'newsletter', 'width=370,height=170,status=no,toolbar=no,menubar=no,resizable=no,directories=no,scrollbars=no');
  else if (document.all) open('http://hem.passagen.se/klas2/vgtones/newsletter/sub.htm', 'newsletter', 'width=370,height=170,status=no,toolbar=no,menubar=no,resizable=no,directories=no,scrollbars=no');
  else if (document.getElementById) open('http://hem.passagen.se/klas2/vgtones/newsletter/sub.htm', 'newsletter', 'width=370,height=170,status=no,toolbar=no,menubar=no,resizable=no,directories=no,scrollbars=no');
  else open('http://hem.passagen.se/klas2/vgtones/newsletter/sub.htm', 'newsletter', 'width=370,height=170,status=no,toolbar=no,menubar=no,resizable=no,directories=no,scrollbars=no');

}