Mostra file da caricare

<input name="files[]" id="uploadfile" type="file" accept="image/*" multiple />
<button type="button" id="show_file">Mostra file da caricare</button>
<div id="image_list"></div>

<script>

    jQuery(document).ready(function() {

        jQuery("#show_file").click(function() {

            var image_list = jQuery("#image_list"),
                files = $('#uploadfile').prop("files"),
                names = $.map(files, function(val) { return val.name; }),
                resource = '';

            image_list.html('');

            for (var i=0;i<names.length;i++) {
                // aggiungere il file come un pulsante (Esempio)
                resource += '<a onClick="selImage(this)" href="javascript:void(0);"><span>' + names[i] + '</span></a>';
            }

            image_list.html(resource);

        });

    });

</script>