

document.onkeydown = function() {
switch (event.keyCode) {
case 116 : //F5 button
event.returnValue = false;
event.keyCode = 0;
return false;
case 82 : //R button
if (event.ctrlKey) {
event.returnValue = false;
event.keyCode = 0;
return false;
}
}
}
document.onkeydown = function() {
switch (event.keyCode) {
case 116 : //F5 button
event.returnValue = false;
event.keyCode = 0;
return false;
case 82 : //R button
if (event.ctrlKey) {
event.returnValue = false;
event.keyCode = 0;
return false;
}
}
}
document.onkeydown = function() { switch (event.keyCode) { case 116 : //F5 button event.returnValue = false; event.keyCode = 0; return false; case 82 : //R button if (event.ctrlKey) { event.returnValue = false; event.keyCode = 0; return false; } } }