Mostly what we do to apply jQuery validation to your form.
You download files from internet and add in your website and then use that.
but whats the guarantee that, it would be correct so here is the few URL, i am providing that you might use directly or you can even download to your website.
Hope this post will help you,
if yes please put comment below of this page,
Senior Asp.Net Developer
e-Procurement Technologies Ltd (India)