function gotoPage(val) {
document.page_form.next_page.value = val;
document.page_form.submit();
}

function toggle(targetId ){
if (document.getElementById) {
 target = document.getElementById (targetId);
if (target.style.display == "none") {
 target.style.display = "";
 }
else {
 target.style.display = "none";
}
}
}

 function start_slideshow(start_frame, end_frame, delay) {
        setTimeout(switch_slides(start_frame,start_frame,end_frame, delay), delay);
    }

    function switch_slides(frame, start_frame, end_frame, delay) {
        return (function() {
            Effect.Fade('slideshow' + frame);
            if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
            setTimeout("Effect.Appear('slideshow" + frame + "');", 850);
            setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay + 850);
        })
    }

function set_sort_order(val) {
 document.sort_by_form.set_sort_order.value = val;
 document.sort_by_form.submit();
}