private void stoCk_Click(object sender, EventArgs e)
{
this.Hide();
stock stfm = new stock();
stfm.Show();
}
private void aGVAILABLESTOToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Hide();
stock availstock = new stock();
//availstock.MdiParent = this;
availstock.Show();
}