protected void si_S2I4ImagePicked(object sender, EventArgs e)
{
OSAEImageManager imgMgr = new OSAEImageManager();
State2Img4 = imgMgr.GetImage((int)sender);
imgState2Img4.Source = LoadImage(State2Img4.Data);
imgState2Img4.ToolTip = "Width:" + imgState2Img4.Width + " Height:" + imgState2Img4.Height;
Validate_Initial_Coordinates();
}