if (window.Event)document.captureEvents(Event.MOUSEUP); 
function nocontextmenu(){event.cancelBubble = true;event.returnValue = false;return false;}
function norightclick(e){if (window.Event){if (e.which == 2 || e.which == 3)return false;}else if(event.button == 2 || event.button == 3){event.cancelBubble = true;event.returnValue = false;return false;}}
function noKeyDown(){if ((window.event.altKey)&&((window.event.keyCode==37)|| (window.event.keyCode==39))){event.returnValue=false;}
if ((event.keyCode==116)|| (event.ctrlKey && event.keyCode==82)){ event.keyCode=0;event.returnValue=false;}
if ((event.ctrlKey)&&(event.keyCode==78)) event.returnValue=false;
if ((event.shiftKey)&&(event.keyCode==121))event.returnValue=false;
if (window.event.srcElement.tagName == "A" && window.event.shiftKey) window.event.returnValue = false;}
document.oncontextmenu = nocontextmenu; 
document.onmousedown = norightclick; 
document.onkeydown=noKeyDown;