Forms >>> Validation Social Security Number.


		<script 
		language="javascript"
		type="text/javascript">

		/* Visit http://www.yaldex.com/ 
		for full source code

		and get more free JavaScript, CSS and DHTML scripts! */

		<!-- Begin

		function 
		SSNValidation(ssn)
		{

		var 
		matchArr = 
		ssn.match(/^(\d{3})-?\d{2}-?\d{4}$/);

		var 
		numDashes = 
		ssn.split('-').length
		-
		1;

		if
		(matchArr
		==
		null
		|| 
		numDashes ==
		1)
		{

		alert('Invalid 
		SSN. Must be 9 digits or in the form NNN-NN-NNNN.');

		msg 
		=
		"does not appear to be valid";

		}

		else

		if 
		(parseInt(matchArr[1],10)==0)
		{

		alert("Invalid 
		SSN: SSN's can't start with 000.");

		msg 
		=
		"does not appear to be valid";

		}

		else
		{

		msg 
		=
		"appears to be valid";

		alert(ssn
		+
		"\r\n\r\n"
		+ 
		msg +
		" Social Security Number.");

		   
		}

		}

		//  End -->

		</script>

		<form>

		<tt>

		SS #:  
		<input 
		type=text
		name=ssn
		size=11
		maxlength=11> 
		(use dashes!)

		</tt>

		<br><br>

		<input
		type=button
		value="Validate 
		Number" 
		onClick="SSNValidation(this.form.ssn.value);">

		</form>