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JavaScript alphanumeric validation

Rinkit Shah

Joined: Aug 16, 2011
Posts: 26
I want to validate a login field such that it is mandatory for the user to enter both numbers as well as alphabets can anyone give a hint on this.
Thanks in advance.
Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 63844

Where's your code so far? What problems are you having with it?

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Rinkit Shah

Joined: Aug 16, 2011
Posts: 26

Thanks Bear next time I will take care of putting my comments in relevant forum.

I have made validation

frmvalidator.addValidation("loginName","req","Please enter your Login Name");
frmvalidator.addValidation("loginName","maxlen=20", "Max length for Login Name is 20");

same I can include as alnum instead of req field for accepting only alphanumeric characters but it is not working properly so needed some guidance on this.
I agree. Here's the link:
subject: JavaScript alphanumeric validation
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