strSQL = "INSERT INTO Comments (docGuid,Content,UserName,email,ip) VALUES('"+DocGuid.Value+"','" + Comments.Text.Replace("'","''") + "','" + CommentsUserName + "','" + email.Text.Replace("'","''") + "','" + Request.UserHostAddress.ToString() + "')";
    cmd.CommandText = strSQL;
    cmd.ExecuteNonQuery();