Simple Second Life region map grab/update script. Uses the gridsurvey.com API

Z&A Region Map Display.lsl

//////////////////////////////////////////////////////////////////////
// Holds the key of the last request.
key g_keyRequest;

//////////////////////////////////////////////////////////////////////
// Force a refresh of the region map.
RefreshMap()
{
    g_keyRequest = llHTTPRequest( "http://api.gridsurvey.com/simquery.php?" +
            "region=" + llEscapeURL( llGetRegionName() ) + "&item=objects_uuid",
            [ HTTP_METHOD, "GET" ], "" );
}

//////////////////////////////////////////////////////////////////////
// Default state.
default
{
    //////////////////////////////////////////////////////////////////
    // Start entry.
    state_entry()
    {
        // Do an initial refresh.
        RefreshMap();
        
        // Set a timer so we refresh every so often.
        llSetTimerEvent( 43200 );
    }

    //////////////////////////////////////////////////////////////////
    // Refresh on touch.
    touch_start( integer total_number )
    {
        RefreshMap();
    }
    
    //////////////////////////////////////////////////////////////////
    // Refresh on timer.
    timer()
    {
        RefreshMap();
    }
    
    //////////////////////////////////////////////////////////////////
    // Handle the HTTP response from the request for the map UUID.
    http_response( key request_id, integer status, list metadata, string body )
    {
        // If the response is in response to our request...
        if ( request_id = g_keyRequest )
        {
            // ...if it's not an error...
            if ( llGetSubString( body, 0, 4 ) != "Error" )
            {
                // Set the texture of the first face to the map.
                llSetTexture( body, 0 );
            }
        }
    }
}

ZARegionMapDisplay.lsl

//////////////////////////////////////////////////////////////////////
// Holds the key of the last request.
key g_keyRequest;

//////////////////////////////////////////////////////////////////////
// Force a refresh of the region map.
RefreshMap()
{
    g_keyRequest = llHTTPRequest( "http://api.gridsurvey.com/simquery.php?" +
            "region=" + llEscapeURL( llGetRegionName() ) + "&item=objects_uuid",
            [ HTTP_METHOD, "GET" ], "" );
}

//////////////////////////////////////////////////////////////////////
// Default state.
default
{
    //////////////////////////////////////////////////////////////////
    // Start entry.
    state_entry()
    {
        // Do an initial refresh.
        RefreshMap();
        
        // Set a timer so we refresh every so often.
        llSetTimerEvent( 43200 );
    }

    //////////////////////////////////////////////////////////////////
    // Refresh on touch.
    touch_start( integer total_number )
    {
        RefreshMap();
    }
    
    //////////////////////////////////////////////////////////////////
    // Refresh on timer.
    timer()
    {
        RefreshMap();
    }
    
    //////////////////////////////////////////////////////////////////
    // Handle the HTTP response from the request for the map UUID.
    http_response( key request_id, integer status, list metadata, string body )
    {
        // If the response is in response to our request...
        if ( request_id == g_keyRequest )
        {
            // ...if it's not an error...
            if ( llGetSubString( body, 0, 4 ) != "Error" )
            {
                // Set the texture of the first face to the map.
                llSetTexture( body, 0 );
            }
        }
    }
}

I just noticed I have a typo on line 48 ("=" when I should have "=="). I've tried to edit this but gist doesn't seem to want to retain the edit. O_o