function stopmouse(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("All Rights Reserved");
		return false;  
 		}
		return true; 
      } 
      document.onmousedown=stopmouse;  
      if (document.layers) 
      window.captureEvents(Event.MOUSEDOWN); 
       window.onmousedown=stopmouse;