1. <html>
  2. <head>
  3. <title>Sample Code</title>
  4. <script type="text/javascript">
  5. function CheckEmail(strEmail)
  6. {
  7. var objRegex = /(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/;
  9. //Check Here Email String
  11. var test=objRegex.test(strEmail);
  13. if(test=true)
  14. {
  15. alert("Your Given Email Id Is \""+strEmail+"\" Correct.");
  16. }
  17. else
  18. {
  19. alert("Your Given Email Id Is Not \""+strEmail+"\" Correct.");
  20. }
  22. }
  23. </script>
  24. </head>
  25. <body bgcolor=#00ff00 alink=blue vlink=blue>
  26. <FORM name="windowEvent">
  27. Email : <input type="text" name="txtemail" />
  28. <input type="button" value="Check Email" name="btnEmail" onClick="CheckEmail(txtemail.value)" />
  29. </FORM>
  30. </body>
  31. </html>