if ($('new_window')) {
  $('new_window').addEvent('click', function(event){
    event.stop();
    window.open(this.href, "send-link", "width=400,height=300");
  });
}

if ($('send-link')) {
  $('send-link').addEvent('submit', function(event){
    if (this.getElement('input[type=submit]').getProperty('disabled')) {
      event.stop();
    }
    if (Browser.Engine.trident) {
      this.getElement('input[type=submit]').addClass('disabled');
    }
    this.getElement('input[type=submit]').setProperty('disabled', 'disabled');
  });
}