Entry

How to trap backspace button event and trap it if the focus is in not inside a text field /text area

Jun 27th, 2003 09:27
Kasey, Mohan B,

You can trap the backspace button using this short piece of code. 

<script type="text/JavaScript" language="JavaScript">
<!--
function disablebackspace() {
  if (window.focus) window.focus();
  document.onkeydown=catchbackspace;
  document.onkeyup=catchbackspace;
}

function catchbackspace() {
  if (!e) e=window.event;
  if (e.keyCode==8){
    alert("Backspace key was pressed.");
    return false;
  }
}
// -->
</script>

Good luck!