protected void lnkbtnsave_Click(object sender, EventArgs e)
        {
            if (Page.IsValid)
            {
                BusinessObjects.User user = new BusinessObjects.User();

                long ret = -1;
                if (!objusr.GetPwd(Convert.ToInt64(Session["uid"].ToString())).ToString().Equals(ClsUtility.MD5Hash(txtcurrpwd.Text)))
                {
                    lblmsg.Text = "Please enter correct Current Password";
                }
                else
                {
                    user.Password = ClsUtility.MD5Hash(txtnewpwd.Text.Trim().ToString());
                    user.UserId   = Convert.ToInt32(Session["Uid"].ToString());
                    ret           = objusr.Changepwd(user);
                    if (ret > 0)
                    {
                        lblmsg.Text = "password change successfully";
                    }
                    else
                    {
                        lblmsg.Text = "Password changing failed";
                    }
                }
            }
        }