code: function (func, args)
  	{
  		if (this._swf[func]) {
  		return(this._swf[func].apply(this._swf, args));
  	    } else {
  		return null;
  	    }
  	}
docs: Calls a specific function exposed by the SWF's
  ExternalInterface.
  @method callSWF
  @param func {String} the name of the function to call
  @param args {Object} the set of arguments to pass to the function.