直接上代码

<script type="text/javascript">

document.oncontextmenu = new Function("return false;");

document.onkeydown = document.onkeyup = document.onkeypress = function(event) {

    var e = event || window.event || arguments.callee.caller.arguments[0];

    if (e && (e.keyCode == 123 || e.keyCode == 116)) {

            e.returnValue = false;

            return (false);

    }

}

</script>