if ($('ul.navigation_list li').length>0) {

        // already loaded do nothing

    } else {

        // load the results from the separate ajax-search/ page

        $(".navigation_list").load("ajax-search/ li ", function() {
            $('#searcher').hideseek({
                nodata: '',
                hidden_mode: true,
                highlight: true,
                headers: '.origin'
            });
            $("input.iclass").attr("placeholder", "Enter search text");
    });

}