How to disable right click option in all browser using script and how to disable refresh button in toolbar

document.attachEvent("onkeydown", DisableF5);

function DisableF5() {
            switch (event.keyCode) {
                case 116: // 'F5'
                    event.returnValue = false;
                    event.keyCode = 0;
                    window.status = "You can't refresh this page.............";
                    break;
            }
}