Need to save or refresh post after adding new input group to make the ajax upload init

Attachment Uploader Metabox

<?php
/**
 * Name: Attachments Metabox Uploader
 * Author: Jared Williams - http://new2wp.com
 * Description: This is for adding a custom metabox to post types which enables you to add/remove 
 * post attachments that you can upload and enter the meta information for right on the edit page.
 * Version: 0.1.0
 *
 * Notes: In order to add this to a post type you need to find the word 'product' and replace it with * whatever the post type is you want to use it on. 
 */

/**
 * TODO:
	1. Make the Save function so the Save button uploads and saves attachments with ajax
	2. Fix the saving of the alt text field and captions
	3. Fix the jQuery ADD markup so the added fields are matching what shows when saved
	4. Make the returned ajax request display in a div not an alert box
	6. There is something I can't remember since writing #2 and it's bugging me now
	7. Now I'm just writing things that aren't really TODO's 
	8. lol this is another one that is not a TODO item
 */
add_action( 'admin_init', 'add_attachment' );
//add_action( 'save_post', 'update_attachment' );
add_action( 'post_edit_form_tag', 'form_multipart_encoding' );

add_action( 'wp_ajax_delete_attachment', 'delete_attachment' );
add_action( 'wp_ajax_save_attachment', 'save_attachment' );
add_action( 'wp_ajax_update_attachment', 'update_attachment' );

add_filter( 'manage_posts_custom_column', 'product_custom_columns' );
add_filter( 'manage_edit-product_columns', 'product_edit_columns' );


/**
 * Add the metabox to the post type edit page
 */
function add_attachment(){
	add_action( 'admin_head', 'metabox_styles' );
	add_action( 'admin_head', 'metabox_scripts' );
	add_meta_box( 'img-uploads', __( 'Add Attachments' ), 'add_attachments', 'product', 'normal', 'high' );
}

/**
 * Add the form multipart attribute for file uploads
 */
function form_multipart_encoding() {
	echo ' enctype="multipart/form-data"';
}

/**
 * Create the metabox and display any attachments as previews
 */
function add_attachments(){
	global $post;
	$attachments = get_posts( array( 'post_type' => 'attachment', 'post_parent' => $post->ID )); ?>
	<a href="#" class="addImage button"><?php _e( 'Add Image' ); ?></a>
	<input type="hidden" name="nonce_add" id="nonce_add" value="<?php echo wp_create_nonce('save_attachment');?>" />
	<div id="img_uploads">
	<?php
	if( $attachments ) {
		foreach( $attachments as $attachment ) { ?>
		
			<div id="att-<?php echo $attachment->ID; ?>" class="attchmt">
				
				<pre><?php // print_r( $attachment ); ?></pre>
				
				<?php
				echo 'ID: ' . $attachment->ID . '<br />' .
					 'Title: ' . $attachment->post_title . '<br />' .
					 'Content: ' . $attachment->post_content . '<br />' .
					 'Caption: ' . $attachment->post_excerpt . '<br />' .
					 'Name: ' . $attachment->post_name . '<br />' .
					 'URL: ' . $attachment->guid . '<br />' .
					 'Posttype: ' . $attachment->post_type;				
				?>
				
				<table id="table-<?php echo $attachment->ID; ?>" class="attach-table" width="100%" cellpadding="3" cellspacing="2">
					<tr>
						<td><span class="req">*</span><?php _e('Image:'); ?></td>
						<td colspan="2">
							
								<input type="file" name="a_image" />
							<?php if( !isset( $attachment->guid )) { ?>
								<input type="text" name="a_url" size="30" value="<?php echo $attachment->guid; ?>" />
							<?php } ?>
						</td>
					</tr>
					<tr>
						<td><label><span class="req">*</span><?php _e('Title:'); ?> </label></td>
						<td><input type="text" name="a_title" value="<?php if( $attachment->post_title ) { echo $attachment->post_title; } else { echo 'Title'; } ?>" /></td>
						<td rowspan="4" valign="top" align="center">
							<div class="prevImage">
								<div align="center"><?php the_attachment_link( $attachment->ID, false, array( 32, 32 )); ?></div>
							</div>
						</td>
					</tr>
					<tr>
						<td><label><?php _e('Alt Text:'); ?></label></td>
						<td><input type="text" name="a_alt" value="<?php echo $attachment->image_alt; ?>" /></td>
					</tr>
					<tr>
						<td><label><?php _e('Content:'); ?></label></td>
						<td><input type="text" name="a_content" value="<?php echo $attachment->post_content; ?>" /></td>
					</tr>
					<tr>
						<td><label><?php _e('Caption:'); ?></label></td>
						<td><input type="text" id="a_excerpt" name="a_excerpt" value="<?php echo $attachment->post_excerpt; ?>" /></td>
					</tr>
				</table>
				
				<!--<input type="submit" id="submit" name="submit" value="Save Image" />-->
				<a class="saveImage button" href="#"><?php _e('Save Image'); ?></a>
				<a class="remImage button" href="#"><?php _e('Remove Image'); ?></a>
				<a href="#" class="addImage button fr"><?php _e('Attach Another Image'); ?></a>
			<input type="hidden" id="att_ID" name="att_ID" value="<?php echo $attachment->ID;?>" />
			<input type="hidden" name="ajax_nonce_delete" id="ajax_nonce_delete" value="<?php echo wp_create_nonce('delete_attachment');?>" />
			<input type="hidden" name="a_update" id="a_update" value="<?php echo wp_create_nonce('update_attachment');?>" />
			</div>
		<?php
			}
		} ?>
	</div>
	<?php
}

/**
 * jQuery scripts for the fancy stuff
 */
function metabox_scripts() { ?>
	<script src="http://code.jquery.com/jquery-1.5.min.js"></script>
	
	<script type="text/javascript">
	
	jQuery(function() {
		var imgDiv = jQuery('#img_uploads'),
			size = jQuery('#img_uploads .attchmt').size() + 1;	
					
		jQuery('.addImage').live('click', function() {
			jQuery.ajax({
				type: 'post',
				url: ajaxurl,
				data: {
					action: 'save_attachment',
					_ajax_nonce: jQuery('#nonce_add').val(),
					post_parent: jQuery('#post_ID').val(),
					attach_title: 'Attachment ' + size
				},
				success: function( res ) {
					var attID = res.replace(/0$/i, '');
					alert('Success: ' + attID);

					jQuery('<div id="att-' + attID + '" class="attchmt"><table class="attach-table" width="100%" cellpadding="3" cellspacing="2"><tr><td><span class="req">*</span><?php _e('Image:'); ?></td><td colspan="2"><input type="file" name="a_image" /></td></tr><tr><td><label><span class="req">*</span><?php _e('Title:'); ?> </label></td><td><input type="text" name="a_title" /></td><td rowspan="4" valign="top" align="center"><div class="prevImage"><div align="center"></div></div></td></tr><tr><td><label><?php _e('Alt Text:'); ?></label></td><td><input type="text" name="a_alt" /></td></tr><tr><td><label><?php _e('Content:'); ?></label></td><td><input type="text" name="a_content" /></td></tr><tr><td><label><?php _e('Caption:'); ?></label></td><td><input type="text" id="a_excerpt" name="a_excerpt" /></td></tr></table><a class="saveImage button" href="#"><?php _e('Save Image'); ?></a><a class="remImage button" href="#"><?php _e('Remove Image'); ?></a><a href="#" class="addImage button fr"><?php _e('Attach Another Image'); ?></a><input type="hidden" id="att_ID" name="att_ID" value="' + attID + '" /><input type="hidden" name="ajax_nonce_delete" id="ajax_nonce_delete" value="<?php echo wp_create_nonce('delete_attachment');?>" /></div>')
						.fadeIn('slow')
						.prependTo(imgDiv);
				}
			});				
			size++;
			return false;
		});
		
		jQuery('.remImage').live('click', function( e ) {
			e.preventDefault();
			jQuery.ajax({
				type: 'post',
				url: ajaxurl,
				data: {
					action: 'delete_attachment',
					att_ID: jQuery(this).parents('.attchmt').find('#att_ID').val(),
					_ajax_nonce: jQuery('#ajax_nonce_delete').val(),
					post_type: 'attachment'
				},
				success: function( html ) {
					alert( html );
					jQuery(this).parents('.attchmt').remove();
				}
			});
		});

		jQuery('.saveImage').live('click', function() {
			var thisDiv = jQuery(this).parents('.attchmt');
			jQuery.ajax({
				type: 'post',
				url: ajaxurl,
				data: {
					action: 'update_attachment',
					att_ID: thisDiv.find('#att_ID').val(),
					title: thisDiv.find('#a_title').val(),
					content: thisDiv.find('#a_content').val(),
					caption: thisDiv.find('#a_excerpt').val(),
					file: thisDiv.find('#a_image').val(),
					_ajax_nonce: thisDiv.find('#a_update').val(),
					post_type: 'attachment'
				},
				success: function( r ) {
					document.createElement('div').before().html( 'Created attachment ID # ' + r );
				}
			});
			return false;
		});
	});
	</script>	
	<?php
}

/**
 * Make it look stylish
 */
function metabox_styles() { ?>
	<style type="text/css">
	.hidetable { display:none; }
	#uploadfield { width:500px; }
	#uploadfield input { display:inline; }
	.req { font-size:12px; color:#FF0000; font-weight:bold; }
	.attchmt { border-bottom:21px solid #666; padding:10px 0; margin:10px 0; }
	.prevImage { float:right; width:250px; text-align:center; }
	.fr { float:right; }
	</style>
	<?php	
}

/**
 * Delete the attachment permanently. Remove 'true' from wp_delete_attachment() 
 * if you only want to remove it from the post not the site completely
 */
function delete_attachment( $post ) {
	if( $_POST['att_ID'] ) {
		$msg = _e( 'Attachment ID [' . $_POST['att_ID'] . '] has been deleted!' );
		if( wp_delete_attachment( $_POST['att_ID'], true )) {
			echo $msg;
		}
	}
	die();
}

function save_attachment() {
	if ( $_POST['action'] == 'save_attachment' ) {
	
		$post_title = $_POST['attach_title'];
		$post_parent = $_POST['post_parent'];
	
		$attach = array(
			'post_title'	=> $post_title,
			'post_parent'	=> $post_parent,
			'post_type' 	=> 'attachment',
			'guid'			=> '',
			'post_mime_type'=> 'image'
		);
		$attachID = wp_insert_attachment( $attach, false );
		if( $attachID ) {
			print_r( $attachID );
		}
	}
}


/**
 * Save and/or Update the file attachment.
 * This function does the uploading and sets the metadata for the file.
 */
function update_attachment() {
	global $post;
	wp_update_attachment_metadata( $post->ID, $_POST['a_image'] );


	var_dump($_POST);
	var_dump($_FILES);
	die;
	if ( $_POST['action'] == 'update_attachment' ) {
	
		$post_title = $_POST['attach_title'];
		$post_parent = $_POST['post_parent'];
	}
		
	if( !empty( $_FILES['a_image']['name'] ) || !empty( $_POST['a_url'] )) {
		require_once( ABSPATH . 'wp-admin/includes/file.php' );

		$override['action'] = 'editpost';
		$file = wp_handle_upload( $_FILES['a_image'], $override );

		if ( isset( $file['error'] )) {
			return new WP_Error( 'upload_error', $file['error'] );
		}

		$file_type = wp_check_filetype( $_FILES['a_image']['name'], array(
			'jpg|jpeg' => 'image/jpeg',
			'gif' => 'image/gif',
			'png' => 'image/png',
		));
		
		if( $file_type['type'] ) {
		
			$url = $file['url'];
			$name = $file['filename'];
			$type = $file['type'];
			$title = $_POST['a_title'] ? $_POST['a_title'] : $name;
			$alt = $_POST['a_alt'] ? $_POST['a_alt'] : $title;
			$content = $_POST['a_content'];
			$caption = $_POST['a_excerpt'];

			$post_id = $post->ID;
			$attachment = array(
				'post_title' => $title,
				'image_alt' => $alt,
				'post_type' => 'attachment',
				'post_content' => $content,
				'post_excerpt' => $caption,
				'post_parent' => $post_id,
				'post_mime_type' => $type,
				'guid' => $url,
			);

			foreach( get_intermediate_image_sizes() as $s ) {
				$sizes[$s] = array( 'width' => '', 'height' => '', 'crop' => true );
				$sizes[$s]['width'] = get_option( "{$s}_size_w" ); // For default sizes set in options
				$sizes[$s]['height'] = get_option( "{$s}_size_h" ); // For default sizes set in options
				$sizes[$s]['crop'] = get_option( "{$s}_crop" ); // For default sizes set in options
			}

			$sizes = apply_filters( 'intermediate_image_sizes_advanced', $sizes );

			foreach( $sizes as $size => $size_data ) {
				$resized = image_make_intermediate_size( $file['file'], $size_data['width'], $size_data['height'], $size_data['crop'] );
				if ( $resized )
					$metadata['sizes'][$size] = $resized;
			}

			$attach_id = wp_insert_attachment( $attachment, $file['file'] /*, $post_id - for post_thumbnails*/);

			if ( !is_wp_error( $id )) {
				$attach_meta = wp_generate_attachment_metadata( $attach_id, $file['file'] );
				wp_update_attachment_metadata( $attach_id, $attach_meta );
			}
			update_post_meta( $post->ID, 'a_image', $images );
		}
	}
}

/**
 * This doesnt work but if it did it would add some custom columns
 */
function product_edit_columns( $columns ) {
	$columns = array(
		'cb' => '<input type="checkbox" />',
		'a_image' => __( 'Image' ),
	);
	return $columns;
}
function product_custom_columns( $column ) {
	global $attachment;
	switch ( $column ) {
		case 'a_image' :
		the_attachment_link( $attachment->ID, false, array( 70, 70 ));
		break;
	}
}
?>