document.oncontextmenu = nocontextmenu;
document.onmousedown = norightclick;
if (window.Event)
document.captureEvents(Event.MOUSEUP);
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 nocontextmenu()
{ event.cancelBubble = true
event.returnValue = false;
return false;
}