/**
*
* get_instance()
*
* If the object is already created then simply return the instance else
* create an object and return the instance.
* Currently only one instance is allowed at a time but currently there is
* no scenario that would require more than one at any time.
*
* @return object This object instance
*
*/
public static function get_instance()
{
if (null === self::$_instance) {
self::$_instance = new self();
}
return self::$_instance;
}
