delphi idhttp post related question - delphi

Question

im new to delphi. and also almost new to programming world.
i was made some simple post software which using idhttp module.
but when execute it , it not correctly working.
this simple program is check for my account status.
if account login successfully it return some source code which include 'top.location ='
in source, and if login failed it return not included 'top.location ='
inside account.txt is follow first and third account was alived account
but only first account can check, after first account other account can't check
i have no idea what wrong with it
ph896011 pk1089
fsadfasdf dddddss
ph896011 pk1089
following is source of delphi
if any one help me much apprecated!
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, IdBaseComponent, IdComponent, IdTCPConnection,
IdTCPClient, IdHTTP, IdCookieManager, ExtCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
IdHTTP1: TIdHTTP;
Memo1: TMemo;
IdCookieManager1: TIdCookieManager;
lstAcct: TListBox;
result: TLabel;
Edit1: TEdit;
Timer1: TTimer;
procedure Button1Click(Sender: TObject);
//procedure FormCreate(Sender: TObject);
//procedure FormClose(Sender: TObject; var Action: TCloseAction);
private
{ Private declarations }
public
AccList: TStringList;
IdCookie: TIdCookieManager;
CookieList: TList;
StartCnt: Integer;
InputCnt: Integer;
WordList: TStringList;
WordNoList: TStringList;
WordCntList: TStringList;
StartTime: TDateTime;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
i: Integer;
//temp: String;
lsttemp: TStringList;
sl : tstringlist;
//userId,userPass: string;
begin
InputCnt:= 0;
WordList := TStringList.Create;
CookieList := TList.create;
IdCookie := TIdCookieManager.Create(self);
if FileExists(ExtractFilePath(Application.ExeName) + 'account.txt') then
WordList.LoadFromFile(ExtractFilePath(Application.ExeName) + 'account.txt');
WordNoList:= TStringList.Create;
WordCntList := TStringList.Create;
lsttemp := TStringList.create;
sl :=Tstringlist.Create;
try
try
for i := 0 to WordList.Count -1 do
begin
ExtractStrings([' '], [' '], pchar(WordList[i]), lsttemp);
WordNoList.add(lsttemp[0]);
//ShowMessage(lsttemp[0]);
WordCntList.add(lsttemp[1]);
//ShowMessage(lsttemp[1]);
sl.Add('ID='+ lsttemp[0]);
sl.add('PWD=' + lsttemp[1]);
sl.add('SECCHK=0');
IdHTTP1.HandleRedirects := True;
IdHTTP1.Request.ContentType := 'application/x-www-form-urlencoded';
memo1.Text:=idhttp1.Post('http://user.buddybuddy.co.kr/Login/Login.asp',sl);
if pos('top.location =',Memo1.Text)> 0 then
begin
application.ProcessMessages;
ShowMessage('Alive Acc!');
//result.Caption := 'alive acc' ;
sleep(1000);
Edit1.Text := 'alive acc';
lsttemp.Clear;
Memo1.Text := '';
//memo1.Text := IdHTTP1.Get('https://user.buddybuddy.co.kr/Login/Logout.asp');
Sleep(1000);
end;
if pos('top.location =', memo1.Text) <> 1 then
begin
application.ProcessMessages;
ShowMessage('bad');
Edit1.Text := 'bad';
//edit1.Text := 'bad';
lsttemp.Clear;
memo1.Text := '';
sleep(1000) ;
end;
Edit1.Text := '';
end;
finally
lsttemp.free;
end;
StartCnt := lstAcct.items.Count;
StartTime := Now;
finally
sl.Free;
end;
end;
end.

Answer 1

Right before:
sl.Add('ID='+ lsttemp[0]);
Do:
sl.Clear;
On the first run your "SL" holds the two POST parameters, but unless you clear it on the second run, you just keep adding parameters, confusing the HTTP server you're trying to connect to!
That might not be your only problem, but that's surely one of the problems.