title: Manager field should be auto populated when we select application in service catalog
body: <p>In category maps table I have created application and application manager field. For each application I have provided manager in application manager field.. In service portal when we select application then manager field should auto populate.</p>
  <pre><code>function onChange(control, oldValue, newValue, isLoading) {
  if (isLoading ) {
  //alert(&quot;manager&quot;);
  
  }
  var user=new GlideAjax(&quot;application&quot;,doAlert);
  function doAlert(user){
  g_form.setValue(&quot;u_application_manager&quot;,user.u_application_manager);
  
  }
  //Type appropriate comment here, and begin script below
  
  }`
  </code></pre>
  <p>`</p>
  <p>I have been struck here</p>