// Desabilita F12
document.onkeypress = function (event) {
        event = (event || window.event);
        if (event.keyCode == 123) {
           //alert('No F-12');
            return false;
        }
    }
    document.onmousedown = function (event) {
        event = (event || window.event);
        if (event.keyCode == 123) {
            //alert('No F-keys');
            return false;
        }
    }
document.onkeydown = function (event) {
        event = (event || window.event);
        if (event.keyCode == 123) {
            //alert('No F-keys');
            return false;
        }
    }
// Desabilita click derecho.
var message="Sorry, right-click has been disabled";
///////////////////////////////////
function clickIE() {if (document.all) {(message);return false;}}
function clickNS(e) {if
(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {(message);return false;}}}
if (document.layers)
{document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}
document.oncontextmenu=new Function("return false")