function next_month_link($label = 'Next Month') {
		echo get_archive_month_link($label, false);
	}

	function previous_month_link($label = 'Previous Month') {
		echo get_archive_month_link($label);
	}

	function get_archive_month_link($label, $previous = true) {

		$archive_month = get_next_or_previous_month($previous);
		if($archive_month) {

			$year = $archive_month[0]->year;
			$month = $archive_month[0]->month;
			$full_month = date("F", strtotime("$year-$month"));

			$label = str_replace(array('%month','%year'), array($full_month,$year), $label);

			return '<a href="' . get_month_link($year, $month).'">'.$label.'</a>';
		}
		return '';

	}


	function get_next_or_previous_month($previous = true) {
		$result = '';
		if(is_archive() && is_month()) {
			$year  =	get_query_var('year');
			$month = get_query_var('monthnum');
			$month = str_pad($month, 2, "0", STR_PAD_LEFT);

			if($previous) {
				$first_day = $year. '-'. $month . '-01 00:00:00';
				$post_date = " AND post_date < '$first_day'";
				$order = "DESC";

			} else {
				$last_day = date("Y-m-d H:i:s", strtotime("first day of next month" .  $year. '-'.$month));
				$post_date = " AND post_date >= '$last_day'";
				$order = "ASC";
			}
			global $wpdb;
			$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish'$post_date GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order LIMIT 0, 1";
			$result = $wpdb->get_results($query);
		}
		return $result;
	}


	add_action( 'pre_get_posts', 'monthly_pagination' );
	function monthly_pagination( $query ) {
		if (!is_admin() && $query->is_main_query()){
			if (is_archive() && $query->is_month() ) {
				$query->set( 'nopaging', true );
			}
		}
	}