Улучшения для Kama_post_meta_box

Для разширения функциональности класса, предлагаю:
ввести 2 понятия разделителей:

elseif( $rg->type == 'block_break' ){
	$out.='<td colspan="2" style="padding:10px 0 2px 0;color:#565656;font-size:24px;border-top:2px solid #565656;background:white">'.$rg->title.'</td>';
}
elseif( $rg->type == 'clear' ){
	$out.='<td colspan="2" style="padding:2px;font-size:18px;border-top:2px solid #e6e6e6">'.$rg->title.'</td>';
}

для добавления возможности загрузки картинки в метаполе (это оооочень часто требуется)

elseif( $rg->type == 'image' ){
	$out.='<td>'.$rg->title.'</td><td>'.media_selector($rg->id, esc_attr($rg->val), $name).'</td>';
}

Функция media_selector

function media_selector($id, $img_id, $name) {
	if (empty($img_id)||!$img_id||$img_id==null) $img_id = 0;
	wp_enqueue_media();
	ob_start();
	?><div>
		<div class='image-preview-wrapper'>
			<img id='image-preview__<?=$id?>' src='<?=wp_get_attachment_url($img_id)?>' style="max-height:200px;max-width:200px;width:auto;height:auto">
		</div>
		<input id="upload_image_button__<?=$id?>" name="<?=$name?>__submit" type="button" class="button" value="<?=__('Upload image','iRemont')?>" />
		<input id="upload_image_button__<?=$id?>__remove" type="button" class="button" value="<?=__('Remove image','iRemont')?>" />
		<input type='hidden' name='<?=$name?>' id='image_attachment_id__<?=$id?>' value='<?=$img_id?>'>
		<input type="submit" name="<?=$name?>__submit" value="Save" class="button-primary">
	</div>
	<script type='text/javascript'>
		jQuery( document ).ready( function( $ ) {
			var file_frame;
			var set_to_post_id = <?=$img_id?>;
			jQuery('#upload_image_button__<?=$id?>').on('click', function( event ){
				file_frame = wp.media.frames.file_frame = wp.media({
					title: '<?=__('Select a image to upload','iRemont')?>',
					button: {
						text: '<?=__('Use this image','iRemont')?>',
					},
					multiple: false
				});
				file_frame.on( 'select', function() {
					attachment = file_frame.state().get('selection').first().toJSON();
					$('#image-preview__<?=$id?>').attr('src',attachment.url);
					$('#image_attachment_id__<?=$id?>').val(attachment.id);
				});
				file_frame.open();
			});
			jQuery('#upload_image_button__<?=$id?>__remove').on('click', function( event ){
				$('#image-preview__<?=$id?>').attr('src','');
				$('#image_attachment_id__<?=$id?>').val('');
			});
		});
	</script>
	<?php
	$var = ob_get_contents();
	ob_end_clean();
	return $var;
}