function acodion_switch(id)
{
    var contents = "acodion_" + id + "_contents";
    var trigger  = "acodion_" + id + "_trigger";
    c = document.getElementById(contents);
    t = document.getElementById(trigger);
    if (c.className && t.className) {
        if (c.className == "acodion_contents_off") {
            c.className = "acodion_contents_on";
            t.className = "acodion_trigger_on";
        } else {
            c.className = "acodion_contents_off";
            t.className = "acodion_trigger_off";
        }
    }
}