https://www.retirementwatch.com/wp-content/plugins/postup-sms/js/signupform-valid-sms.js?ver=1.0

1jQuery(document).ready(function($) {
2	$('body').on('click', '.submitpostupform_sms', function(e){
3		e.preventDefault();
4		$(this).closest('form').submit();
5	});
6	$('body').on('submit', '.eaglepostupform_sms', function(){
7		$(this).prepend('<input type="hidden" name="sms_submitted" value="1" />');
8		var mobile_number = $(this).find('input[name="mobile_number"]').val();
9		var rx = /[0-9]/gi;
10		var m = mobile_number.match(rx);
11		if(m && m.length == 10)
12		{
13			return true;
14		}
15		else
16		{
17			alert('Please enter your 10-digit mobile number. Your entry has '+m.length+' digits.');
18			return false;
19		}
20	});
21	/*
22	$('.eaglepostupform_sms input[name="mobile_number"]').keyup(function(){
23		$(this).val($(this).val().replace(/(\d{3})\-?(\d{3})\-?(\d{4})/,'$1-$2-$3'))
24	});
25	*/
26	/*
27	$('.eaglepostupform_sms input[name="mobile_number"]').keyup(function(e){
28		var key = e.charCode || e.keyCode || 0;
29		var $text = $(this);
30		if(key !== 8 && key !== 9)
31		{
32			if($text.val().length === 3)
33			{
34				$text.val($text.val() + '-');
35			}
36			if($text.val().length === 7)
37			{
38				$text.val($text.val() + '-');
39			}
40		}
41		return (key == 8 || key == 9 || key == 46 || (key >= 48 && key <= 57) || (key >= 96 && key <= 105));
42	});
43	*/
44});