function change_frames(suburl, mainurl, bottomurl) { //v3.0
  eval("parent.sub.location='"+suburl+"'");
  eval("parent.main.location='"+mainurl+"'");
  eval("parent.bottom.location='"+bottomurl+"'");
}
function MM_callJS(jsStr) { //v2.0
  return eval(jsStr)
}
function open_image(url) { //v2.0
  posx = (screen.availWidth - 360)/2;
  posy = (screen.availHeight - 330)/2;
  image = window.open(url,'image','left='+posx+',top='+posy+',toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=400,height=400');
  if (window.focus) {image.focus()}
}
function open_biblio(url) { //v2.0
  biblio = window.open(url,'biblio','left=0,top=0,toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=330,height=330');
  if (window.focus) {biblio.focus()}
}