(function() {
    var logEl = document.getElementById('log');
    function log(m) { var d = document.createElement('div'); d.className='pkg-log-entry'; d.textContent=m; logEl.appendChild(d); logEl.scrollTop=logEl.scrollHeight; }
    new MultipleUpload('#demo', {
        uploadUrl: '/api/upload',
        multiple: true,
        allowedExtensions: '.jpg,.jpeg,.png,.gif,.pdf,.docx',
        onValidationError: function(msg, name) { log((name||'file') + ': ' + msg); }
    });
})();