Help about Input Validation www*.com/org/info/net

hi!, how will I validate a form input that will only accept a domain name only.

example:

http://www.UserSubmittedSite.com

http://www.UserSubmittedSite.org

http://www.UserSubmittedSite.info

Thanks in adavance!

 

Visit Following :
http://www.hscripts.com/scripts/JavaScript/domainValidate.php

This will help you..

 

Thank you very for the fast reply
but the script dont work if i use a post method

EDIT: Its working now Thank You very much!

<form name="form1" onSubmit="return checkDomain(form1.Link.value)" method="post" action="process.php">
   Link
  <input name="Link" type="text" id="Link2">
  <input type="submit" name="Submit" value="Add">
  <img src="CaptchaSecurityImages.php" />
Security Code: 
<input id="security_code" name="security_code" type="text" />
</form>

Code (markup):

 

javascript is a client side script. therefore the validaiton is done on the users browser. This should never be trusted, perform additional user input validation in php, get the regex for a domain name from here http://regexlib.com/ and do an ereg in php.