Cách 1
//// JavaScript Document
var message=”NoRightClicking”; function defeatIE() {if (document.all) {(message);return false;}} function defeatNS(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=defeatNS;} else{document.onmouseup=defeatNS;document.oncontextmenu=defeatIE;} document.oncontextmenu=new Function(“return false”)
//]]>
function disableselect(e){
return false
}function reEnable(){
return true
}//if IE4+
document.onselectstart=new Function (“return false”)
//if NS6
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}
Cách 2: chống f12, ctrl + U, ctrl + s, chuột phải
//(function () {
window.onload = function () {
document.addEventListener(“contextmenu”, function (e) {
e.preventDefault();
}, false);
document.addEventListener(“keydown”, function (e) {
// “I” key
if (e.ctrlKey && e.shiftKey && e.keyCode === 73) {
disabledEvent(e);
}
// “J” key
if (e.ctrlKey && e.shiftKey && e.keyCode === 74) {
disabledEvent(e);
}
// “S” key + macOS
if (e.keyCode === 83 && (navigator.platform.match(“Mac”) ? e.metaKey : e.ctrlKey)) {
disabledEvent(e);
}
// “U” key
if (e.ctrlKey && e.keyCode === 85) {
disabledEvent(e);
}
// “C” key
if (e.ctrlKey && e.keyCode === 67) {
disabledEvent(e);
}
// “F12” key
if (event.keyCode === 123) {
disabledEvent(e);
}
}, false);
function disabledEvent(e) {
if (e.stopPropagation) {
e.stopPropagation();
} else if (window.event) {
window.event.cancelBubble = true;
}
e.preventDefault();
return false;
}
};
})();
//]]>
