Event.observe(document, "keydown", function(event) {
switch (event.keyCode) {
case 66: // Ctrl + B
case 68: // Ctrl + D
case 78: // Ctrl + N
case 82: // Ctrl + R
case 84: // Ctrl + T
if (!event.ctrlKey) { break; }
case 116: // F5
if (event.preventDefault) {
event.preventDefault();
} else {
event.keyCode = null;
}
return (event.returnValue = false);
}
return true;
});
Event.observe(document, "contextmenu", function(event) {
if (event.preventDefault) {
event.preventDefault();
}
return (event.returnValue = false);
});
使用：
<html>
<head>
<title>test shut key</title>
<script type="text/javascript" src="prototype.js"></script>
<script type="text/javascript" src="limitations.js" charset="UTF-8"></script>
</head>
<body>
chengf<input type="text" name="birth" id="birth"/><br/>
</body>
</html>
welcome!
</script>
其中的ptototype.js 需要在网上下载！！