function footnoteContent( $content ) {

		global $id; // This is the Post ID, [@see WP_Query::setup_postdata, ...]

		if ( ! empty( $this->footnotes ) && isset( $this->footnotes[ $id ] ) ) {
			$footnotes = $this->footnotes[ $id ];
		} else {
			return $content;
		}

		if ( $this->numbered[ $id ] ) {
			$content .= '<hr class="before-footnotes" /><div class="footnotes"><ol>';
		} else {
			$content .= '<hr class="before-footnotes" /><div class="footnotes"><ul>';
		}

		foreach ( $footnotes as $num => $footnote ) {
			$num++;
			$numlabel = "$id-$num";
			$content .= '<li id="footnote-' . $numlabel . '">' . make_clickable( $footnote ) . ' <a href="#return-footnote-' . $numlabel . '" class="return-footnote">&crarr;</a></li>';
		}

		if ( $this->numbered[ $id ] ) {
			$content .= '</ol></div>';
		} else {
			$content .= '</ul></div>';
		}

		unset( $this->footnotes[ $id ] ); // Done, reset

		return $content;
	}