rochars / wavefile-reader

function hideAllButCurrent(){

    //by default all submenut items are hidden

    //but we need to rehide them for search

    document.querySelectorAll("nav > ul > li > ul li").forEach(function(parent) {

        parent.style.display = "none";

    });

    //only current page (if it exists) should be opened

    var file = window.location.pathname.split("/").pop().replace(/\.html/, '');

    document.querySelectorAll("nav > ul > li > a").forEach(function(parent) {

        var href = parent.attributes.href.value.replace(/\.html/, '');

        if (file === href) {

            parent.parentNode.querySelectorAll("ul li").forEach(function(elem) {

                elem.style.display = "block";

            });

        }

    });

}

hideAllButCurrent();