Validating a group key with the World API

key http_request_id;
key group = "d1228743-d417-938b-db90-52081ed656ba"; //Type in a group key or any other key to test.
default
{
    state_entry()
    {
       http_request_id = llHTTPRequest("http://world.secondlife.com/group/"+(string)group,[],""); // Usesthe world API to request information of a group.
    }

   http_response(key request_id, integer status, list metadata, string body)
    {
        if (request_id == http_request_id)
        {

            if(llSubStringIndex(body,"Page Not Found") == -1)  // Valid group keys return the group information.
            {
                llOwnerSay("That's a valid group key!");
            }

            else  // Invalid group keys return "Page Not Found"
            llOwnerSay("That's not a valid group key!");
        }
    }
}