GSFN = {

  dropbox: function(options) {
    options = GSFN.reverse_merge(options, {
      height: "300",
      width:  "440"
    });

    var embed_url = "http://getsatisfaction.com/dropboxes?config=" + 
        encodeURIComponent( 'http://shopping' + '.zappos.com/n/gsfn.cgi?brand_id=850&mode=config' );
    document.write('<div id="zgsfn">');
    document.write('<h2>Need help or advice with adidas\ Originals?</h2>');
    document.write('<div id="gsfn_box"><iframe src="' + embed_url + 
        '" frameborder="0" ' + 
        'width="'+ options.width +'" height="' + options.height + '"></iframe></div></div>');
  },
  
  extend: function(destination, source) {
    for (var property in source)
      destination[property] = source[property];
    return destination;
  },
  
  reverse_merge: function(options, defaults) {
    var result = {};
    GSFN.extend(result, defaults)
    GSFN.extend(result, options)
    return result;
  }

};