$argsgaleria = array('orderby'   => 'title',
						'order'		=> 'ASC',
						'posts_per_page'=>-1,
						'post_type' => 'galeria'
			);
			$myposts2 = get_posts( $argsgaleria );

			foreach ( $myposts2 as $post ) : setup_postdata( $post );
			$gal_id = $post->ID;

			$checked2 = is_array($gals) && isset($gals[$gal_id]) && in_array(get_the_ID(), $gals[$gal_id]) ? 'checked="checked"' : '';

				?>
					<p><label>
						<input <?php echo  $checked2; ?> type="checkbox" name="myposts_gal[<?php echo $gal_id;?>][<?php echo $id_pro;?>]" value="<?php the_ID(); ?>" id="myposts_gal[]" /><?php the_title(); ?>
					</label></p>
				<?php


			endforeach;