loadDestinationParameters() Extracts any parameters specified as part of the destination URL, calling addPresetParameter for each one
in the order in which they are found.
Contructs a web request source.
Parameters: response - the response from which this request source was extracted Parameters: node - the DOM subtree defining this request source Parameters: baseURL - the URL on which to base all releative URL requests Parameters: destination - the relative URL to which requests will be directed
Records a parameter defined by including it in the destination URL.
The value can be null, if the parameter name was not specified with an equals sign.