psathish2 -6 Junior Poster in Training

I am trying to disable the F5 key in Mozilla. I have the next code in
javascript that it is working in Internet Explorer but it is not
working in Mozilla. how can I disable the F5 key in Mozilla?

function checkKeyCode(evt)
{

var evt = (evt) ? evt : ((event) ? event : null);
var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
if(event.keyCode==116)
{

evt.keyCode=0;
return false
}
}
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