gistfile1.js

Object.extend(Ajax, {
  registerURL: function(url, options) {
    options = Object.extend({
      instancePooling:  true,
      autoUpdatePlayer: true
    }, options || {});
    
    this._registry.set(url, options);
  },
  
  getOptionsForURL: function(url) {
    return this._registry.detect( function(pair) {
      return pair.key.include(url) ? pair.value : null;
    });
  },
  
  _registry: $H()
});


Ajax.Request.addMethods({
  initialize: function($super, url, options) {
    $super(options);
    
    // Use flXHR if we qualify for it; otherwise fall back to the default
    // `Ajax.getTransport`.
    var flXHRoptions = Ajax.getOptionsForURL(url);
    if (this.options.asynchronous && $w('POST GET').include(
     this.options.method) && flXHRoptions) {
      this.transport = new flensed.flXHR(flXHRoptions);
    } else {
      this.transport = Ajax.getTransport();
    }
    
    this.request(url);    
  }
});