function menu_display(t_id,i_id){
        var t_id;
        var i_id;
        var on_img="member_img/fold_2.gif";
        var off_img="member_img/fold_1.gif";
                if (t_id.style.display == "none") {
                t_id.style.display="";
                i_id.src=on_img;
}
        else{
                t_id.style.display="none";
                i_id.src=off_img;
                }

}
function showhide(t_id,i_id){
        var t_id;
        var i_id;
        var on_img="member_img/minus.gif";
        var off_img="member_img/plus.gif";
                if (t_id.style.display == "none") {
                t_id.style.display="";
                i_id.src=on_img;
}
        else{
                t_id.style.display="none";
                i_id.src=off_img;
                }

}