禁止鼠标右键及F12功能(禁止打开控制台)

window.document.oncontextmenu = 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.returnValue = false;
        return (false);
    }
}