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Validate an age using jQuery Validator plug-in

/ Published in: jQuery
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Useful snippet i found on a forum, use it to check to see if a user is old enough to submit a form.

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Copy this code and paste it in your HTML 
  1. //Legal age validator check
  2. $.validator.addMethod('check_date_of_birth', function(value, element) {
  3. 	var day = $("#dob_day").val();
  4. 	var month = $("#dob_month").val();
  5. 	var year = $("#dob_year").val();
  6. 	var age =  18;
  7.  
  8. 	var mydate = new Date();
  9. 	mydate.setFullYear(year, month-1, day);
  10.  
  11. 	var currdate = new Date();
  12. 	currdate.setFullYear(currdate.getFullYear() - age);
  13.  
  14. 	return (currdate - mydate < 0 ? false : true);
  15. });
  16.  
  17. //Usage
  18. $("#theform").validate({
  19. 	rules: {
  20. 		dob_day: {
  21. 			check_date_of_birth: true,
  22. 			required: true
  23. 		}
  24. 	}
  25. });

URL: http://bassistance.de/jquery-plugins/jquery-plugin-validation/

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