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

//function right(e) {
//if (navigator.appName == 'Netscape' && 
//(e.which == 3 || e.which == 2))
//return false;
//else if (navigator.appName == 'Microsoft Internet Explorer' && 
//(event.button == 2 || event.button == 3)) {
//alert("Sorry, you do not have permission to right click.");
//return false;
//}

//if ((navigator.appName == 'Netscape') && (navigator.userAgent.indexOf("Firefox")!=-1)){
//if (event.button == 2 || event.button == 3)
//alert("Sorry, you do not have permission to right click.")
//return false;
//}
//return true;
//}

//document.onmousedown=right;
//document.onmouseup=right;
//if (document.layers) window.captureEvents(Event.MOUSEDOWN);
//if (document.layers) window.captureEvents(Event.MOUSEUP);
//window.onmousedown=right;
//window.onmouseup=right;