validating internet address in javascript

Question

Possible Duplicate:
how can i validate a url in javascript using regular expression

I want to validate whether user input a valid internet adress like www.hotmail.com http://www.abc.com.pk

Answer 1

Please see this link: http://www.shauninman.com/archive/2006/05/08/validating_domain_names

Answer 2

Here's the js function:

function validateString(regexPattern, testString) {
 var regexObj = new RegExp(regexPattern);
 return regexObj.test(testString);
}

Finding the regex for URLs is just a matter of typing it in google. Here's a good one I've used before.