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Validate a date of birth using jQuery

/ Published in: jQuery
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courtesy Jean-Baptiste Jung

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  1. $("#lda-form").submit(function(){
  2. 	var day = $("#day").val();
  3. 	var month = $("#month").val();
  4. 	var year = $("#year").val();
  5. 	var age = 18;
  6. 	var mydate = new Date();
  7. 	mydate.setFullYear(year, month-1, day);
  8.  
  9. 	var currdate = new Date();
  10. 	currdate.setFullYear(currdate.getFullYear() - age);
  11. 	if ((currdate - mydate) < 0){
  12. 		alert("Sorry, only persons over the age of " + age + " may enter this site");
  13. 		return false;
  14. 	}
  15. 	return true;
  16. });

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