<form id="myForm" action="add_item.php" method="post" enctype="multipart/form-data">
    Select image to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload Image" name="submit">
</form>
<p id="paragraph">Suggestions:</p>
<script>
    $('#paragraph').show();
     $.ajax
            (
                {
                    url: 'add_item.php',
                    type: 'POST',
                    success: function () {
                        $('#paragraph').show();
                        $('#myForm').submit();
                    }
                }
            )
</script>