var section_count = 3;
var cur_section = 1;


function sr_navigate(dir) {
    cur_section = sr_calc(cur_section + dir);
    sr_select(cur_section)
}

function sr_select(section)
{
    cur_section = section;
    for(var i = 1; i <= section_count; i++)
    {
        var img = document.getElementById("fwsdot_" + i);
        var sec = document.getElementById("section_" + i);
        if(cur_section == i)
        {
            img.src = "/images/buttons/panel_switcher_fullcircle.gif";
            sec.className = "fw_section";
        }
        else
        {
            img.src = "/images/buttons/panel_switcher_opencircle.gif";
            sec.className = "fw_section hide";
        }
    }
}

function sr_calc(check_num)
{
    if (check_num > section_count) { return 1; }
    if (check_num < 1) { return section_count; }
    return check_num;
}
        
function sr_hover(img, state){
    if(state == 'on')
    {
        img.src = "/images/buttons/panel_switcher_fullcircle.gif";
    }
    if(state == 'off')
    {
        if(img.id != "fwsdot_" + cur_section) { img.src = "/images/buttons/panel_switcher_opencircle.gif"; }
    }
}