//var changed=0;
//var added=0;
//var msg = "";
//window.onbeforeunload = confirmExit;
//function confirmExit() 
//{  
//     if(changed==1)
//     {
//        changed = 0;
//        return msg;
//     }
//     else if(changed==0 && added==1)
//     {
//        changed = 1;
//     }
//}
//function setChangeStatus(status, message)
//{   
//    changed = status;
//    msg = message;
//    //alert("change: " + changed + " add: "+ added + " message: " + msg); 
//}
//function setAddStatus(status, message)
//{     
//    added = status;
//    if(added == 1)
//        changed = 0;
//    msg = message;
//    //alert("change: " + changed + " add: "+ added + " message: " + msg);
//}