Cut and paste this snippet into your the <HEAD> of your HTML document to make IE ignore the backspace.
<script language="JavaScript"><!--
function mykeyhandler() {
if (window.event && window.event.keyCode == 8) { // ignore the
backspace
window.event.cancelBubble = true;
window.event.returnValue = false;
return false;
}
}
document.onkeydown = mykeyhandler;
//--></script>
