not sure if this will help or give a pointer, but we use this code to
keep users from hitting the refresh key and escape keys. Our enviroment
(3rd party web "browser-like" interface) doesn't have a back button, so
we never dealt with that issue. it might be able to be tweaked for the
back button too.
function document_onkeydown()
{
// keycode for F5 function
// traps F5 key press assign to backspace
// then cancels backspace ;-)
if (window.event && window.event.keyCode == 116) {
alert("diabled");
window.event.keyCode = 8;
// keycode for backspace
if (window.event && window.event.keyCode == 8) {
// cancel the backspace
window.event.cancelBubble = true;
window.event.returnValue = false;
return false;
}
}
// escape key
if (window.event && window.event.keyCode == 27) {
alert("disabled");
window.event.returnValue = false;
}
}
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