function wopen(url, name, w, h)
{
  // Fudge factors for window decoration space.
  // In my tests these work well on all platforms & browsers.
  //w += 32;
  //h += 96;
  wleft = (screen.width - w) / 2;
  wtop = (screen.height - h) / 2;
  var win = window.open(url, name,'width=' + w + ', height=' + h + ', ' + 'left=' + wleft + ', top=' + wtop + ', ' +    'location=no, menubar=no, ' +    'status=no, toolbar=no, scrollbars=no, resizable=yes');
  // Just in case width and height are ignored
  win.resizeTo(w, h);
  // Just in case left and top are ignored
  win.moveTo(wleft, wtop);
  win.focus();
}

function wopenscroll(url, name, w, h)
{
  // Fudge factors for window decoration space.
  // In my tests these work well on all platforms & browsers.
  //w += 32;
  //h += 96;
  wleft = (screen.width - w) / 2;
  wtop = (screen.height - h) / 2;
  var win = window.open(url, name,'width=' + w + ', height=' + h + ', ' + 'left=' + wleft + ', top=' + wtop + ', ' +    'location=no, menubar=no, ' +    'status=no, toolbar=no, scrollbars=yes, resizable=yes');
  // Just in case width and height are ignored
  win.resizeTo(w, h);
  // Just in case left and top are ignored
  win.moveTo(wleft, wtop);
  win.focus();
}


function popup_win3( loc ) {
   var remote = null;
   var wd = 810;
   var hg = screen.availHeight * 0.8;
   var xpos = screen.availWidth/2 - wd/2; 
   var ypos = (screen.availHeight/2 - hg/2) - 64; 
   remote = window.open(loc, "newwindow", "toolbar=0,menubar=0,scrollbars=1,resizable=1,location=top,status=0,width="+wd+",height="+hg+",screenX=0,screenY=0,top="+ypos+",left="+xpos);
   if (remote != null) {
      if (remote.opener == null) {
         remote.opener = self;
      }
      remote.location.href = loc;
      remote.focus();
   } 
   else { 
      self.close(); 
   }
}