[flexcoders] How to pass Query String in Url

[balaji]

Hi all,

  I am a newbie to flex , I am trying to pass the querystring to URL but it is 
not working . 

  The url : http://base_url/?login=loginname&password=password

  I tried to pass the arguments like this

  <mx:HTTPService id="loginService" url="base_url" method="POST" 
      resultFormat="text" result="{handleLogin(event)}" fault="
      {handleFault(event)}">
      <mx:request>
        <login>{username.text}</login>
        <password>{password.text}</password>
      </mx:request>
  </mx:HTTPService>
  
  I need your help in fixing the issue , 

Thanks in Advance

Balaji