// Driver id numeric (unique).
// Driver name.
// Icon set.
protected
string
$iconSet = 'vkontakte_icon';
// Login button tempalte set.
// Entry point URL.
// Driver's settings array.
// User Source application object.
// Process verify action.
// Getting button HTML.
// Constructior.
// Dispatch verify login action.
// Return HTML button.
// Returns current driver ID.
// Return driver name.
// Return entry point script name.
// Returns driver icon.
// Returns short string hash.
}