function filterToggle(e) {
    e.stopPropagation();
    if(!filterFlag) {
        filterFlag = true;
        targetElement = e.target;
        if(e.target.nextElementSibling.nodeName == "UL") e.target.nextElementSibling.style.cssText = "width: 100%; font-size: 1.4rem;";
        else e.target.nextElementSibling.nextElementSibling.lastElementChild.style.cssText = "width: 100%; font-size: 1.4rem;";
        if(window.addEventListener) window.addEventListener('click', windowClick, false);
        else window.attachEvent('onclick', windowClick);
    }
    else {
        filterFlag = false;
        if(e.target.nextElementSibling.nodeName == "UL") e.target.nextElementSibling.style.cssText = "width: 0; font-size: 0;";
        else e.target.nextElementSibling.nextElementSibling.lastElementChild.style.cssText = "width: 0; font-size: 0;";
        if(window.removeEventListener) window.removeEventListener('click', windowClick, false);
        else window.detachEvent('onclick', windowClick);
    }
}