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Client Side Scripts for Validating Web Form Controls using DHTML in Java

  1. Forget Code
  2. Java
  3. Client Side Scripts for Validating Web Form Controls using DHTML 
  1. <html>
  2.  
  3. <head>
  4.  
  5. <title>A Simple Form with JavaScript Validation</title>
  6.  
  7. <script type="text/javascript">
  8.  
  9. <!--
  10.  
  11. function validate_form ( )
  12. {
  13. valid = true;
  14.  
  15. if ( document.contact_form.contact_name.value == "" )
  16. {
  17. alert ( "Please fill in the 'Your Name' box." );
  18. valid = false;
  19. }
  20. if ( document.contact_form.contact_name.value != "" )
  21. {
  22. alert ( "Succesfull" );
  23. valid = false;
  24. }
  25. return valid;
  26.  
  27. }
  28.  
  29. //-->
  30.  
  31. </script>
  32.  
  33. </head>
  34.  
  35. <body bgcolor="#FFFFFF">
  36.  
  37. <form name="contact_form" method="post" onSubmit="return validate_form ( );">
  38.  
  39. Please Enter Your Name
  40.  
  41. <p>Your Name: <input type="text" name="contact_name"></p>
  42. <p><input type="submit" name="send" value="Send Details"></p>
  43.  
  44. </form>
  45.  
  46. </body>
  47.  
  48. </html>