string DestinationsNoteCardName = "Destinations";
string ResultsNoteCardName = "Results";
string region;
string status;
string xpos;
string ypos;
key PosQuery;
key StatusQuery;
list results;
integer n;
integer NumLines;

default
{
    touch_start(integer total_number)
    {
        NumLines = osGetNumberOfNotecardLines(DestinationsNoteCardName); 
        n = 0;
        region = osGetNotecardLine(DestinationsNoteCardName,n);
        StatusQuery = llRequestSimulatorData(region, DATA_SIM_STATUS);
    } 
    
    dataserver(key queryId, string data) 
    {
            if (queryId == StatusQuery) {
                StatusQuery = "";
                status = data;
                xpos="-1";
                ypos="-1";
                
                if (status == "up") {
                        PosQuery = llRequestSimulatorData(region, DATA_SIM_POS); 
                    } else  {
                       results += [region,status,xpos,ypos]; 
                       n += 1;
                       if (n >= NumLines) {
                            osMakeNotecard(ResultsNoteCardName,results);
                            llSay (0, "Processing is completed, stored in notecard "+ResultsNoteCardName);
                        } else {
                            region = osGetNotecardLine(DestinationsNoteCardName,n);
                            StatusQuery = llRequestSimulatorData(region, DATA_SIM_STATUS);
                        }
                    }    
              
            } else if (queryId == PosQuery) {      
                PosQuery = "";
                list location = llParseString2List(data,[",", "<",">"],[" "]);
                xpos = (string) (llList2Integer(location,0)/256);
                ypos = (string) (llList2Integer(location,1)/256);
                results += [region,status,xpos,ypos];
                n += 1;
                
                if (n >= NumLines) {
                    osMakeNotecard(ResultsNoteCardName,results);
                    llSay (0, "Processing is completed, stored in notecard "+ResultsNoteCardName);
                } else {
                    region = osGetNotecardLine(DestinationsNoteCardName,n);
                    StatusQuery = llRequestSimulatorData(region, DATA_SIM_STATUS);
                }
            }
    }
}