function asset_selector_type(asset_type) {
  console.log(asset_type);
  switch(asset_type) {
    case audio:
      $.getJSON('/teacher/' + asset_type + ".json", function(data) {
        console.log(data)
        for(var i=0; i < data.length; i++) {
          $('#asset_list form').append("<input type='radio' name='asset' /><span>" + data[i].audio.content_file_name + "'/>");
        }
     });
    break;
    case document:
    break;
    case image:
      $.getJSON('/teacher/' + asset_type + "s.json", function(data) {
        console.log(data)
        for(var i=0; i < data.length; i++) {
          $('#asset_list form').append("<input type='radio' name='asset' /><img src='/assets/" + asset_type + "s/" + data[i].image.id + "/small/" +  data[i].image.content_file_name + "'/>");
        }
     })
    break;
    case quiz:
    break;
    case video:
    break;
  }
}