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<SCRIPT LANGUAGE="JavaScript">
// 중요키 막기
document.onkeydown=KeyEventHandle;
document.onkeyup=KeyEventHandle;
function KeyEventHandle() {
if((event.ctrlKey == true && (event.keyCode == 78 || event.keyCode == 82)) || (event.keyCode >= 112 && event.keyCode <= 123)) {
event.keyCode = 0;
event.cancelBubble = true;
event.returnValue = false;
}
}
//중요키 막기
</script>