// disable right clicks
isIE=document.all;
isNN=!document.all&&document.getElementById;
isN4=document.layers;

if (isIE||isNN)
{
 document.oncontextmenu=checkV;
}
else
{
 document.captureEvents(Event.MOUSEDOWN || Event.MOUSEUP);
 document.onmousedown=checkV;
} 

function checkV(e)
{
		if (isN4)
		 {
		if (e.which==2||e.which==3)
				{
				dPUW=alert(PopUpURL);
				return false;
				}
		}
		else
		{
		return false;
		}
}

 document.onselectstart = function() {return false;} // ie
  document.onmousedown = function() {return false;} // mozilla