function zoom(page, imagesize) 
{
  var features
  features = "toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=auto, resizable=no, fullscreen=no, channelmode=no, top=20, left=20, " + imagesize
  window.open (page , "", features); 
}

function popup(page, imagesize, show) {
  if (show=='yes') {
  var features
  features = "toolbar=no, location=no, directories=no, status=no, menubar=no,  scrollbars=no, resizable=no, fullscreen=no, channelmode=no, top=200, left=200, " + imagesize
  window.open (page , "", features);}
}