bewest

var Controls = Class.create();Controls.prototype = {  options : {    url : 'actions/controls.php',    api_url: 'actions/admin.php'  },  _controls : {    'login': 0, 'user': 0,    'collections': 0, 'marker': 0,    'logout': 0, 'collection_browser': 0,    'collection_editables': 0, 'collection_editor': 0  },  initialize : function (opts) {    if(opts)      Object.extend(this.options, opts);  },  fetch_control : function (name, args) {    if(this._controls[name] == 0) {      var params = "name=" + name;      if(args) {        params += '&' + args;      }      var opts = {method: 'get', parameters: params, onSuccess: this._register_control.bind(this)};      new Ajax.Request(this.options.url, opts);    }  },  release_control : function(name) {    if(this._controls[name].unload)      this._controls[name].unload(this);    delete this._controls[name];    this._controls[name] = 0;  },  _register_control : function(request) {    var response;    var control = Class.create();    var local_opts = { uri: this.options.api_url};    eval('response = ' + request.responseText + ';');    if(response) {      if(response.meta.html) {        response.insertion();      }      control.prototype = response.control;      if(response.opts) {        Object.extend(local_opts, response.opts);      }      this._controls[response.meta.control_name] = new control(local_opts);    }  },  init_control_list : function(controls) {    Object.extend(this._controls, controls);  }};