JavaScript to disable f5 button

[cooldudephone]

hi,
i am using below code to disable f5 button
<script>
window.history.forward(1);
document.attachEvent("onkeydown", my_onkeydown_handler);
function my_onkeydown_handler()
{
switch (event.keyCode)
{

case 116 : // 'F5'
event.returnValue = false;
event.keyCode = 0;
window.status = "We have disabled F5";
break;
}
}
</script>


but it is not working
can any one help me with a better one


Thanks in Advance.

[Kor]

There are some special keys (most of the functions and combination of) which, even if they can be captured in javascript, can not be stopped/disabled. Some of them are controlled only by the Operating System. For instance, for a Windows PC: Alt+F4. or CTRL+ALT+DELETE.

It is absolutely logical. You can not prevent the owner of a PC from closing his browser, can you?

It looks like F5 is one of those keys