/**
* This function is a singleton method used to instantiate the EEM_Event object
*
* @access public
* @param string $timezone
* @return EEM_Event
*/
public static function instance($timezone = NULL)
{
// check if instance of EEM_Event already exists
if (!self::$_instance instanceof EEM_Event) {
// instantiate Espresso_model
self::$_instance = new self($timezone);
}
//we might have a timezone set, let set_timezone decide what to do with it
self::$_instance->set_timezone($timezone);
// EEM_Event object
return self::$_instance;
}
