function expandCollapse(elem)
{
    if (document.getElementById)
    {
        e = document.getElementById(elem);
        //i = document.getElementById(elem + "Image");
        if (e.style.display == "none" | e.style.display == null | e.style.display == "")
        {
                e.style.display = "block";
        //        i.src = "img/arrow_down.gif";
        }
        else if (e.style.display == "block")
        {
                e.style.display = "none";
        //        i.src = "img/arrow_right.gif";
               
        }
        else
        {
                //alert(e.style.display);
                e.style.display = "block";
        //        i.src = "img/arrow_down.gif";
        }
           
    }
}