<html>
<head>
<script language="JavaScript">
function function2() {
alert("This image is copyrighted")
}
</script>
</head>
<body oncontextmenu="function2()">
<p>Right click in the image.</p>
<img oncontextmenu="function2()"
src="http://www.java2s.com/style/logo.png"
alt="www.java2s.com"
width="99"
height="76">
</body>
</html>
If you want to disable the context menu,
add the following code to the <body>:
oncontextmenu="function2(); return false;"