private void nextproposal_Click(object sender, EventArgs e)
        {
            if (jsonindex < rootjson.pagination.items)
                jsonindex++;
            if (jsonindex < rootjson.pagination.items)
            {
                int site = jsonindex / 3 + 1;
                int index = jsonindex % 3;
                if (rootjson.pagination.page != site)
                    rootjson = getroot(site, textBoxquery.Text);
                setProposal(index);
            }
            else
            {
                MessageBox.Show("You are through all Proposals");
            }
        }