title: get selected value in angular ng-option
body: <p>I have an object like bellow:</p>
  
  <pre><code>var data = {
      BCS: ['a', 'b', 'c', 'd'],
      HND: ['e', 'f', 'g', 'h'],
      LMU: ['i', 'j', 'l', 'm']
  };
  </code></pre>
  
  <p>And Bellow is my controller </p>
  
  <pre><code>function getDivision($scope) {
      $scope.divisions = data;
  }
  </code></pre>
  
  <p>And this is model </p>
  
  <pre><code>&lt;div ng-app&gt;
      &lt;div ng-controller='getDivision'&gt;
          &lt;select ng-model="key" ng-options="key for (key , val) in divisions" ng-change="update()"&gt;&lt;/select&gt;
          &lt;select ng-model="divisionValues" ng-options="value for value in key"&gt;&lt;/select&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>This is <a href="http://jsfiddle.net/cQ99H/" rel="nofollow">JsFiddle</a> </p>
  
  <p>How can i get first selected value and parse it to the controller ?</p>