function ob_swap_image(img_id,img_src) {
 $('#'+img_id).get(0).src = img_src;
}

function ob_change_selected(selection,parent_id) {
 $('#'+parent_id).find('a').removeClass('selected');
 selection.className = 'selected';
}

function ob_closeCbox(id) {
 $("a[rel='"+id+"']").colorbox.close();
}