[scriptable, uuid(5678d4a3-2543-4ece-afbb-079292f2866e)]
interface calIServer : nsISupports
{
    attribute AString host; 

    attribute PRUint32 port; 
    
    attribute AUTF8String status;
}
[scriptable, uuid(d1d2e05d-5472-482e-b0a4-a9e43925d530)]
interface nsIFoo : nsISupports
{
     readonly attribute calIServer server;
     void loadServerData();
};



var foo = Cc[...].getService(Ci.nsIFoo);

foo.server.port = 80;