>Age class looks quite familiar. However I don't know what type age validation it serves in your case. SSN validation OTOH is (I don't know how to say - every effort made to create a slow routine as I see it).
>Cetin

In the comments to the class I see only my colleague's name. I don't know if he wrote it originally or took from here. It doesn't really matter, because you're right, we don't need to use this class at all. The code only checks that the person is less than 120 years old (that's a Jewish blessing, BTW - live to 120). I'll work out the SSN algorithm. I didn't re-write it, I just put m. in it (so much hated by all my other colleagues) <g>. But now I'll take a closer look.