
document.attachEvent("onkeydown", win_onkeydown_handler);

function win_onkeydown_handler() {
  switch (event.keyCode) {
    case 116:
      event.returnValue = !1;
      event.keyCode = 0;
      break;
    case 27:
      event.returnValue = !1, event.keyCode = 0
  }
}


window.onload = function() {
          window.moveTo(0, 0);
          window.resizeTo(screen.availWidth, screen.availHeight)
        };
     

        document.onkeydown = function(a) {
            return !1
          };

          
          var isNS = "Netscape" == navigator.appName ? 1 : 0;
          "Netscape" == navigator.appName && document.captureEvents(Event.MOUSEDOWN || Event.MOUSEUP);
  
          function mischandler() {
            return !1
          }
  
          function mousehandler(a) {
            a = isNS ? a : event;
            a = isNS ? a.which : a.button;
            if (2 == a || 3 == a) return !1
          }
          document.oncontextmenu = mischandler;
          document.onmousedown = mousehandler;
          document.onmouseup = mousehandler;