I bascially need to just be able to show the polish translated menu or the english menu. The best way I can think of it is:
if($languageCookie=='polish'){ wp_nav_menu(use the navigation label rather than the page title) }else{ wp_nav_menu(use the page title rather than the navigation label) } That is because in appearance>menus for each menu item you can also choose to have a navigation label and a title label.
I found the answer was to create my own walker with a little help from this article.
This is it. The most important part being when it checks for the $language value (which is got from a cookie), and assigns the value of either $item->title or $item->description.
class description_walker extends Walker_Nav_Menu { function start_el(&$output, $item, $depth, $args) { global $language; global $wp_query; $indent = ( $depth ) ? str_repeat( "\t", $depth ) : ''; $class_names = $value = ''; $classes = empty( $item->classes ) ? array() : (array) $item->classes; $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) ); $class_names = ' class="'. esc_attr( $class_names ) . '"'; $output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>'; $attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : ''; $attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : ''; $attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : ''; $attributes .= ! empty( $item->url ) ? ' href="' . esc_attr( $item->url ) .'"' : ''; $prepend = '<strong>'; $append = '</strong>'; $item_output = $args->before; $item_output .= '<a'. $attributes .'>'; if($language=="polish"){ $item_output .= $args->link_before .$prepend.apply_filters( 'the_title', $item->description, $item->ID ).$append; }else{ $item_output .= $args->link_before .$prepend.apply_filters( 'the_title', $item->title, $item->ID ).$append; } $item_output .= '</a>'; $item_output .= $args->after; $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); } }