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C#

login.cs

protected void Page_Load(object sender, EventArgs e)
  {

  }
  protected void ctlLogin_Authenticate(object sender, AuthenticateEventArgs e)
  {
      bool Authenticated = false;
      CheckBox chBox = (CheckBox)ctlLogin.FindControl("RememberMe");
      Authenticated = UserAuthenticate(ctlLogin.UserName, ctlLogin.Password);
      e.Authenticated = Authenticated;
     if (Authenticated == true)
      {
          if (chBox.Checked == true)
          {
              Response.Cookies["RFriend_Email"].Value = ctlLogin.UserName;
              Response.Cookies["RFriend_PWD"].Value = ctlLogin.Password;
              Response.Cookies["RFriend_UID"].Value = Session["Id"].ToString();
             Response.Cookies["RFriend_Email"].Expires = DateTime.Now.AddMonths(3);
              Response.Cookies["RFriend_PWD"].Expires = DateTime.Now.AddMonths(3);
             Response.Cookies["RFriend_UID"].Expires = DateTime.Now.AddMonths(3);
          }

          Response.Redirect("UserDetails.aspx?Id=" +Session["Id"].ToString());

     }
  }

master.cs

login.aspx web form is the web form of master page

if ((!object.Equals(Request.Cookies["RFriend_Email"], null)) && (!object.Equals(Request.Cookies["RFriend_PWD"], null)) && (!object.Equals(Request.Cookies["RFriend_UID"], null)))
{
    if ((!object.Equals(Request.Cookies["RFriend_Email"].Value, "")) && (!object.Equals(Request.Cookies["RFriend_PWD"].Value, "")) && (!object.Equals(Request.Cookies["RFriend_UID"], "")))
    {
        Session["Email"] = Request.Cookies["RFriend_Email"].Value;
        Session["Password"] = Request.Cookies["RFriend_PWD"].Value;
        Session["Id"] = Request.Cookies["RFriend_UID"].Value;
    }
    else
    {
    }

I simply want to know about that what the code do in master.cs?