document.oncontextmenu = new Function("return false;");
document.onkeydown = document.onkeyup = document.onkeypress = function (e) {
var e = event || window.event || arguments.callee.caller.arguments[0];
if (e.keyCode == 123) {
alert('禁止打开控制台');
e.returnValue = false;
return (false);
}
}