How to disable F11-button?

Hi,
does anyone know how to disable the F11-button to prevent the browser to maximize(IE)?

I have a window without back-button, menus, etc. When I press F11 the window maximizes and all these options are suddenly available.

I only need to solve for IE5.5 and above.

Thanx in advance.

this should work!

<SCRIPT>
document.onkeydown = function ()
{
if (122 == event.keyCode)
{
event.keyCode = 0;
return false;
}
}
</SCRIPT>

Yup, that's it.

Thanx man!