<!--
function kCheck(e) {
	if(navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)) {
		alert("지정된 키이외는 사용이 불가능 합니다.");
		return false;
	}

	if(navigator.appName == 'Microsoft Internet Explorer') {
		if( event.keyCode == 122 ) {
			self.close();
			return false;
		}

		if( (event.keyCode >= 112 && event.keyCode < 116) || (event.keyCode > 116 && event.keyCode <= 121 ) ||
	event.keyCode == 17 || event.keyCode == 18 || event.keyCode == 91 || event.keyCode == 8) {
			alert("사용이 통제된 키 입니다.");
			return false;
		}

	return true;
	}
}

function mFalse() {
  return false;
}

// Mouse Button Handler
document.onkeydown=kCheck;
document.oncontextmenu=mFalse;

// None Drag
document.onselectstart=mFalse;
document.ondragstart=mFalse;

function click() {
	if ((event.button==2) || (event.button==3) || (event.keyCode == 93)) {
	}

	if((event.ctrlKey) && (event.keyCode == 67)) {
	}

	if((event.ctrlKey) && (event.keyCode == 78)) {
		return false;
	}
}

document.onmousedown=click;
document.onkeydown=click;
//-->