// gallery.js

var photoWindow = null;

function closeWin(){
  if (photoWindow != null){
    if(!photoWindow.closed)
      photoWindow.close();
  }
}

function photo_open(link, w, h)
{
  x = (screen.width - w) / 2;
  y = (screen.height - h) / 2;
  closeWin();
  photoWindow = window.open(link,"photo",
    "width=" + w + ", height=" + h + ", " +
    "left=" + x + ", top=" + y + ", " +
    "toolbar=0,menubar=0,location=0,scrollbars=0,resizable=0");
}