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;
                }

}

document.oncontextmenu = nocontextmenu;  
document.onmousedown = norightclick;




<!--
function popup(pTargetURL, pHeight, pWidth, pSizable, pScrollbars)
{
var popwinxy = window.open (pTargetURL,"window",
"width="+pWidth+",height="+pHeight+",toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars="+pScrollbars+",resizable="+pSizable);
}
// -->