title: How to convert JSON query?
body: <p>here is my JSON Output I got:</p>
  
  <pre><code>{
    "success":true,
    "return":{
      "an":[
        {
          "ordner_id":1,
          "name":"Eingang",
          "gesamt":"1415",
          "ungelesen":"0"
        },
        {
          "ordner_id":3,
          "name":"Gel\u00f6scht"
        },
        {
          "ordner_id":"42864",
          "name":"Test1",
          "gesamt":"0",
          "ungelesen":"0"
        }
      ],
      "von":[
        {
          "ordner_id":2,
          "name":"Gesendet"
        },
        {
          "ordner_id":3,
          "name":"Gel\u00f6scht"
        }
      ]
    }
  }
  </code></pre>
  
  <p>I can get the "success" and the "return" value easily (BOOL and NSDictonary) with this lines:</p>
  
  <pre><code> NSDictionary *ensFolderListFirstReturn = [ENSHandler GetENSFolderList];
  BOOL success = [[ensFolderListFirstReturn objectForKey:@"success"] boolValue];  
  if (success)
  {
      ensFolderList = [ensFolderListFirstReturn objectForKey:@"return"];
  }
  </code></pre>
  
  <p>But when I try to get the "an"-value with this:</p>
  
  <pre><code> NSDictionary *ensFolderList1 = [ensFolderList objectForKey:@"an"];
  </code></pre>
  
  <p>I got a BAD EXEC-error.</p>
  
  <p>What am I doing wrong?</p>