var lisitng_thumbnail_event = function() {
$('.icon-featured').on('click', function(e){
e.preventDefault();
var $this = jQuery(this);
var thumb_id = $this.data('attachment-id');
var thumb = $this.data('thumb');
var icon = $this.find( 'i');
$('.upload-view-media .media-image img').attr('src',thumb);
$('.upload-gallery-thumb-buttons .featured_image_id').remove();
$('.upload-gallery-thumb-buttons .icon-featured i').removeClass('fa-star').addClass('fa-star-o');
$this.closest('.upload-gallery-thumb-buttons').append('<input type="hidden" class="featured_image_id" name="featured_image_id" value="'+thumb_id+'">');
icon.removeClass('fa-star-o').addClass('fa-star');
});
}