1. <script language="JavaScript">
2.   /**
3.     * Disable right-click of mouse, F12 key, and save key combinations on page
4.     * By Arthur Gareginyan ([email protected])
5.     * For full source code, visit https://mycyberuniverse.com
6.     */
7.   window.onload = function() {
8.     document.addEventListener("contextmenu", function(e){
9.       e.preventDefault();
10.     }, false);
11.     document.addEventListener("keydown", function(e) {
12.     //document.onkeydown = function(e) {
13.       // "I" key
14.       if (e.ctrlKey && e.shiftKey && e.keyCode == 73) {
15.         disabledEvent(e);
16.       }
17.       // "J" key
18.       if (e.ctrlKey && e.shiftKey && e.keyCode == 74) {
19.         disabledEvent(e);
20.       }
21.       // "S" key + macOS
22.       if (e.keyCode == 83 && (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey)) {
23.         disabledEvent(e);
24.       }
25.       // "U" key
26.       if (e.ctrlKey && e.keyCode == 85) {
27.         disabledEvent(e);
28.       }
29.       // "F12" key
30.       if (event.keyCode == 123) {
31.         disabledEvent(e);
32.       }
33.     }, false);
34.     function disabledEvent(e){
35.       if (e.stopPropagation){
36.         e.stopPropagation();
37.       } else if (window.event){
38.         window.event.cancelBubble = true;
39.       }
40.       e.preventDefault();
41.       return false;
42.     }
43.   };
44. </script>