NumberUpDownExtender

I'm using asp.net 2.0, so don't have the AJAX asp extension. I work at a govt facility that doesn't allow us to install anything unless it is approved first.  Getting things approved can take awhile.  I was wondering if anyone has implented their own NumberUpDownExtender-like control without using AJAX and if the code might be available.  Any help would be appreciated.

Thanks,

Jan
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