Bank IFSC Code Validation using Javascript or jQuery

Introduction


Here is a validation code for a bank IFSC code.
 
IFSC code format:
- Starting 4 should be only alphabets[A-Z]
- Remaining 7 should accept only alphanumeric 
 
Code
  1. <script type="text/javascript">    
  2. $(document).ready(function(){     
  3.         
  4. $(".ifsc").change(function () {      
  5. var inputvalues = $(this).val();      
  6.   var reg = /[A-Z|a-z]{4}[0][a-zA-Z0-9]{6}$/;    
  7.                 if (inputvalues.match(reg)) {    
  8.                     return true;    
  9.                 }    
  10.                 else {    
  11.                      $(".ifsc").val("");    
  12.                     alert("You entered invalid IFSC code");    
  13.                     //document.getElementById("txtifsc").focus();    
  14.                     return false;    
  15.                 }    
  16. });      
  17.     
  18. });    
  19. </script>    
  20.     
  21. IFSC : <input type="text" class="ifsc">