private void bPreVision_Click(object sender, EventArgs e)
 {
     bUploadFTP_Click(null, null);
     if (web == null)
     {
         web             = new WEB("https://web1050.craft-host.ru/vr_mode.html" + "?sceneId=" + scene.name);
         web.FormClosed += Web_FormClosed;
         web.Owner       = this;
         web.Show();
     }
     else
     {
         web.refreshPage();
     }
 }
 private void Web_FormClosed(object sender, FormClosedEventArgs e)
 {
     web = null;
 }