function addClass (element, className) {
    if (!hasClass(element, className)) {
        if (element.className) {
            element.className += " " + className;
        } else {
            element.className = className;
        }
    }
}

function removeClass (element, className) {
    var regexp = addClass[className];
    if (!regexp) {
        regexp = addClass[className] = new RegExp("(^|\\s)" + className + "(\\s|$)");
    }
    element.className = element.className.replace(regexp, "$2");
}

function hasClass (element, className) {
    var regexp = addClass[className];
    if (!regexp) {
        regexp = addClass[className] = new RegExp("(^|\\s)" + className + "(\\s|$)");
    }
    return regexp.test(element.className);
}

function toggleClass (element, className) {
    if (element.hasClass(className)) {
        element.removeClass(className);
    } else {
        element.addClass(className);
    }
}

function removeActive( element ) {
    var links = $( element ).childNodes;

    for (ind = 0; ind < links.length; ind++) {
        if (links[ind] && links[ind].tagName == 'A') {
            removeClass(links[ind], 'active');
        }
    }
}