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;