1. <html>
  2. <head>
  3. <title>Sample Code</title>
  4. <script type="text/javascript">
  5. function Check(b)
  6. {
  7. var a = /(^[0-9]+[-]*[0-9]+$)/;
  8. if (a.test(b) == true)
  9. {
  10. alert("Match Criteria")
  11. }
  12. else
  13. {
  14. alert("Please Enter Only Digits & Hyphen.")
  15. }
  16. };
  17. </script>
  18. </head>
  19. <body bgcolor=#00ff00 alink=blue vlink=blue>
  20. <FORM name="windowEvent">
  21. Number : <input type="text" name="txtnumber" />
  22. <input type="button" value="Check" name="btnNumber" onClick="Check(txtnumber.value)" />
  23. </FORM>
  24. </body>
  25. </html>