code: function(callback_name, callback_argument) {
  
  		var name;
  
  		for (name in this._property_bindings) this._property_bindings[name][callback_name](callback_argument);
  
  		for (name in this._style_bindings) this._style_bindings[name][callback_name](callback_argument);
  
  		for (name in this._class_bindings) this._class_bindings[name][callback_name](callback_argument);
  
  	}
docs: Call a method of all binding arguments
  @param {string} callback_name Method to call
  @param {*} callback_argument Argument for the method