/**
* Return an instance of the Help class
*
* Use this for generating or retrieving instance of Help
* objects so that if the Help class needs to be abstracted
* in the future, this common interface can still be used
*
* @return object New instance of Help class if one doesnt
* already exist. Otherwise return the current instance
*/
static function getInstance()
{
if (empty(self::$instance)) {
self::$instance = new Help();
}
return self::$instance;
}
