function event_false() {
         window.event.returnValue = false
   }

document.onselectstart = event_false
document.oncontextmenu = function(){return false}
document.oncontextmenu=Desactiva 

document.onmouseup=Desactiva 
document.onselect=Desactiva 
document.onselectstart=Desactiva 
document.onmouseover=Desactiva 
document.onmouseout=Desactiva 
function Desactiva() {return false} 

Pop=window.createPopup() 
setInterval("{Pop.show()}",100);