<script>
document.onkeydown = function(e) {
var keyCode = null;
var ctrlKey = "";
if (e) {
if (e.keyCode) {
keyCode = event.keyCode;
} else if (e.which) {
keyCode = event.which;
}
if (e.ctrlKey) {
if (keyCode == 17) return;
ctrlKey = "ctrl+";
}
alert(ctrlKey + keyCode);
}
}
</script>
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