Uploader

<fine-uploader id='myUploader1'>
</fine-uploader>

<select class="form-control" onchange="changeTheme(this);">
  <option>default</option>
  <option>flat</option>
  <option>dark</option>
</select>

<script type="text/javascript">
  function changeTheme(select) {
    var el = document.getElementById('myUploader1');
    var theme = select.selectedOptions[0].textContent;
    el.set('theme', theme);
  }
  
  fine.ready(function(e) {
    var el = document.getElementById('myUploader1');
    el.setConfig({
      target: '../../includes/upload.php',
    });
  });

</script>