<HTML>
<HEAD>
<TITLE>JavaScript 계산기</TITLE>
</head>
<body oncontextmenu="return false" onselectstart="return false"
ondragstart="return false" >
</body>
</html>
<HEAD>
<TITLE>JavaScript 계산기</TITLE>
</head>
<body oncontextmenu="return false" onselectstart="return false"
ondragstart="return false" >
</body>
</html>