private void toolStripButton6_Click(object sender, EventArgs e)
        {
            PopularVideo frm = new PopularVideo();

            frm.MdiParent = this;
            frm.Show();
        }
        private void popularVideosToolStripMenuItem_Click(object sender, EventArgs e)
        {
            PopularVideo frm = new PopularVideo();

            frm.MdiParent = this;
            frm.Show();
        }