If you are using this for your own purpose, please let me know your feelings.
You may not modify this class because:
* It is already tested,
* It has a lot of revisions and maturity.
* There is no real need to modifiy this.
However, if you do modify, please let me know. You may use this class file to keep it in a
commercial production. But, please write about my website and name in some visible pages,
like, about us, and the used classes.
Thank you for re-engineering your websites with this class.