jQuery Context Menu Down Website Keyboard Right Click Down or Off

jQuery Context Menu Down Website Keyboard Right Click Down or Off

$(function() {

  "use strict";

  document.addEventListener('contextmenu', function(e) {
    e.preventDefault();
  });

  window.oncontextmenu = function () {
    return false;
  }

  window.onkeydown = function () {
    return false;
  }


  window.onmousedown = function () {
    return false;
  }    

  document.onkeydown = function(e) {
    if(event.keyCode == 123) {
      return false;
    }
    if(e.ctrlKey && e.shiftKey && e.keyCode == 'I'.charCodeAt(0)){
      return false;
    }
    if(e.ctrlKey && e.shiftKey && e.keyCode == 'J'.charCodeAt(0)){
      return false;
    }
    if(e.ctrlKey && e.shiftKey && e.keyCode == 'S'.charCodeAt(0)){
      return false;
    }
    if(e.ctrlKey && e.keyCode == 'U'.charCodeAt(0)){
      return false;
    }
  }

})(window.jQuery);  

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