echo " <h3>Select files to upload!.</h3>
           Max file size = ". $size_bytes / 1024 ." KB";
    echo " <form method=\"post\" action=\"index.php?id=upload\" enctype=\"multipart/form-data\">";
           // show the file input field based on($num_files).
               echo "File 1: <input type=\"file\" name=\"file". 1 ."\"><br>";
                echo "Preview: <input type=\"file\" name=\"file". 2 ."\"><br>";
           
    echo " <input type=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"$size_bytes\">
           	Your Name <input type=\"text\" name=\"author\" size=\"20\"> <br />
	        Your website <input type=\"text\" name=\"website\" size=\"20\"> <br /><br />
           <input type=\"submit\" name=\"upload_form\" value=\"Upload Now!\"> 
           </form>