fancyzoombehavior.js

FancyZoomImageBehavior = Behavior.create({
  initialize: function() {
    var src = this.element.readAttribute('href');
    var div = $div($img({src: src}));
    document.body.insert({after: div});
    this.element.writeAttribute('href', '#' + div.identify());
    new FancyZoom(this.element);
  }
});