// Prevent page from being right-clicked at any point
// for images, view source etc....
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;
        }
    }
}

if (document.layers)
{
    document.captureEvents(Event.MOUSEDOWN);
}

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