Hola
aqui te dejo un codigo para bloquear el boton derecho
<SCRIPT LANGUAGE="JavaScript">
curPage=1;
document.oncontextmenu = function(){return false}
if(document.layers) {
window.captureEvents(Event.MOUSEDOWN);
window.onmousedown = function(e){
if(e.target==document)return false;
}
}
else {
document.onmousedown = function(){return false}
}
</SCRIPT>