form
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Untitled Document</title> | |
| </head> | |
| <style> | |
| .error {color:red} | |
| </style> | |
| <script src="https://code.jquery.com/jquery-2.1.3.min.js"></script> | |
| <body> | |
| <form action="http://google.com" method="post" id="myForm"> | |
| <div class="box"> | |
| <div class="label"> | |
| First Name | |
| </div> | |
| <div class="inputs"> | |
| <input type="text" id="firstname" size="30"> | |
| </div> | |
| </div> | |
| <div class="box"> | |
| <div class="label"> | |
| Last Name | |
| </div> | |
| <div class="inputs"> | |
| <input type="text" id="lastname" size="30"> | |
| </div> | |
| </div> | |
| <div class="box"> | |
| <div class="label"> | |
| </div> | |
| <div class="inputs"> | |
| <button type="submit">Submit</button> | |
| </div> | |
| </div> | |
| </form> | |
| <script> | |
| $('#myForm').submit(function(e){ | |
| a = $('#lastname').val() | |
| if (a == '' ) { | |
| $('#lastname').parent().prev().addClass('error') | |
| alert('Please Fill the form') | |
| return false; | |
| } | |
| }) | |
| $('#lastname').keypress(function(){ | |
| $('#lastname').parent().prev().removeClass('error') | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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