protected void Page_Load(object sender, EventArgs e)
{
//Random ran = new Random();
//int seed = ran.Next(1000);
//string text = GenerateRandomString(4, RandomStringMode.Mix);
//Session["ValidateCode"] = text;
//ShowValidationCode(ref seed, text, 12, Color.Black, Color.White);
ValidateHelper vhelper = new ValidateHelper();
string checkCode = vhelper.CreateCode(4);
Response.Clear();
Response.ContentType = "image/jpeg";
CreateImages(checkCode);
Response.End();
}