/* total dll */
 function jm_get_total_dll_count() {
	 global $wpdb;
	 $query = "
		SELECT sum(meta_value)
		FROM $wpdb->postmeta
		WHERE $wpdb->postmeta.meta_key = '_edmc-download-count'
		";

		$results = $wpdb->get_var( $wpdb->prepare($query,$meta_key) );
		return $results;

}