private void SetCaptcha()
{
// Set image
string s = new Captcha().GenerateSolution(null);
// Save to session
Session["captcha"] = s.ToLower();
/* if (context.Session["Captcha"].ToString() != null)
{
strCaptcha = context.Session["Captcha"].ToString();
}*/
imgCaptcha.ImageUrl = "~/Handlers/CaptchaHandler.ashx?c=" + s;
}
