menus_array = new Array ('ul_sidebar_boxone', 'ul_sidebar_boxtwo', 'ul_sidebar_boxthree', 'ul_sidebar_boxfour');
menus_status_array = new Array ();

function getId(id) {
    if (typeof(document.getElementById) != "undefined") {
        return document.getElementById(id);
    } else {
        return null;
    }
}

function thread(node,id) {
    var divid = getId(id);
    var date = new Date();
    date.setTime(date.getTime()+(356*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();

    if (divid == null) return;

    if (divid.style.display == 'none') {
        divid.style.display = 'block';
        document.cookie = id + '=block' + expires + "; path=/";
    } else {
        divid.style.display = 'none';
        document.cookie = id + '=none' + expires + "; path=/";
    }
    // alert ('set cookie ' + id + ' ' +getCookie(id));

}

function getCookie(name) {

    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++)
    {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;

}

function resetmenu () {

    if (document.getElementById) {

        for (var i=0; i<menus_array.length; i++) {

            var id = menus_array[i];
            var divid = getId(id);

            // alert ('read cookie ' + id+' '+getCookie(id));

            if ((divid != null) && (getCookie(id) == 'none')) {
                divid.style.display = 'none';
            } else if (divid != null) {
                divid.style.display = 'block';
            }

        }
    }
}