Regular expression validator

Hi all

I want to understand the regular expression of regular expression validator.
So that I can write my own expression in regular expression property of regular expression validator.
Where I can find it???

Thanx
Devs

see this article (http://www.evolt.org/article/Regular_Expressions_in_JavaScript/17/36435/index.html) on Regular Expressions...

also you could google (http://www.google.com/search?hl=en&q=regular+expression+tutorial) for it...