Amazon = Class.create();
Amazon.prototype = {
  initialize: function() {
    this.url = '/api/amazon/browse'
      + '?browsenode=' + amazon_browsenode
      + '&mode=' + amazon_mode
      + '&limit=' + amazon_limit;
    this.browse = $('amazon-browse');
  },
  fetch_products: function() {
    new Ajax.Request(this.url, {
      method: 'get',
      onComplete: function (request) {
        this.browse.innerHTML = request.responseText;
      }.bind(this)
    });
  }
}
var amazon = new Amazon;
amazon.fetch_products();