how can I call variable out side of $.ajax?

I am trying to make condition to call chain function in Jquery. I used $.ajax in Jquery submit function to get values from login.php 开发者_JAVA百科and I am trying to call fadeOut function to close login form. If login succes form will close then there will be some Success message and then it wil lalso close. And if error then form will remain and also error message. I made it also but in my login.js when I call $('.loginform').fadeOut(1000) it works also if login succes or not.

jQuery('#login').live('submit',function(event) {

$.ajax({
    url: 'lib/login.php',
    type: 'POST',
    dataType: 'json',
    data: $('#login').serialize(),
    success: function( data ) {

       for(var id in data) {
            jQuery('.' + id).html(data[id]);    
        }
$('.loginform').hide(1000);     

    }
 });

return false;
 }

});

and my login.php file includes

if(result==1){
  $arr = array ( "loginOK" => "Success." ); 

} else {

 $arr = array ( "errors" => "Please try again ." );

}
echo json_encode( $arr );

this is index.html

    <!--Login Form tag -->

<div class='errors'></div>

 <div class='loginOK'></div>

<div class='loginform'>

  <form  action ="" method="post" id="login">
    <fieldset class="loginfield">
        <legend>Login</legend>
        <div>
            <label for="username">User Name</label> <input type="text" id="username" name="username">
        </div>
        <div>
            <label for="password">Password</label> <input type="password" id="password" name="password">
        </div>
    </fieldset>
      <button type="submit" id="submit-go" ></button>
<a href="#?w=500" rel="popup_name" class="poplight">Sing up</a>

</form>

</div>

the success: function( data ) { handler executes when the request is successful, not when the login is successful. You need to provide a flag in your json to indicate that, and check that flag it in your handler:

success: function( data ) {

    if(data.success) {
       for(var id in data) {
           jQuery('.' + id).html(data[id]);    
       }
       $('.loginform').hide(1000);   

    }  else {
       alert('Error logging in');
    }

}

EDIT:

Your current json object is like

{
  id_1:'html_1',
  id_2:'html_2'
}

You should make it something like

{
  html: {
    id_1: 'html_1',
    id_2: 'html_2'
  },
  success: $login_success
}