function ie6Nav() {
    var navigationSections = $(".navlist");
    navigationSections.click(toggleChildren);
    navigationSections.css('cursor', 'pointer');
}

function toggleChildren() {    
    var parentLists = $(this).children(".parentul");
    for (var i = 0; i < parentLists.length; i++) {
        if (parentLists[i].style.display == "block") {
            parentLists[i].style.display = "none";

        }
        else {
            $(".parentul").css("display", "none");
            parentLists[i].style.display = "block";
        }
    }
}