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Home/ Questions/Q 120537
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Asked: May 11, 20262026-05-11T03:49:37+00:00 2026-05-11T03:49:37+00:00

When a user have changed something in a form, then clicks on any link

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When a user have changed something in a form, then clicks on any link that will direct him to another page, I’d like to trigger a popup with a ‘Would you like to Save before leaving?’ option.

How can I do this?

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  1. 2026-05-11T03:49:38+00:00Added an answer on May 11, 2026 at 3:49 am

    Example:

     <script type='text/javascript'>      var shouldConfirm = false;      window.onbeforeunload = function() {          if(shouldConfirm) {              return 'You have made unsaved changes. Would you still like to leave this page?';          }      }  </script>   <input id='FullName' type='text' />  <script type='text/javascript'>      document.getElementById('FullName').onchange = function() {          shouldConfirm = true;      }  </script> 

    There’s a full article at 4GuysFromRolla.com.

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