function move_up() 
{
    var move = getCookie('move');
    if (move == '') return false;
    
    var menu = document.getElementById('menu');
    menu.scrollTop = move;
    
    // should i delete the cookie here
    // or reset it to zero
}


function do_click()
{
    moved = document.getElementById('menu');
    moved = moved.scrollTop;
    
    // record the cookie
    setCookie('move', moved, 1);
}

function getCookie(c_name)
{
    if (document.cookie.length > 0)
    {
        c_start = document.cookie.indexOf(c_name + "=")

        if (c_start != -1)
        { 
            c_start = c_start + c_name.length + 1 
            c_end = document.cookie.indexOf(";", c_start)
            
            if (c_end == -1) c_end = document.cookie.length
            return unescape(document.cookie.substring(c_start, c_end))
        } 
    }
    return 0;
}

function setCookie(c_name,value,expiredays)
{
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + expiredays);
    document.cookie = c_name + "=" + escape(value) +
    ((expiredays==null) ? "" : ";expires=" + exdate.toGMTString()) + '; path=/';
}