function mark_order_by() {
  try {
    order_node = dojo.byId( order_by + '_order');
    insert_after(order_node, document.createTextNode('*'));
  } catch (err) {}
}

function insert_after(existing, new_node) {
  existing.parentNode.insertBefore(new_node, existing.nextSibling);
}

function global_init()
{
  if( dojo.byId(p_nav+'_nav') )
    dojo.addClass(p_nav + '_nav', 'p_nav_item_active' );
  
  if( dojo.byId(s_nav+'_nav') )
    dojo.addClass(s_nav + '_nav', 'secondary_nav_item_active' );
    
  if( dojo.byId(t_nav +'_nav') )
    dojo.addClass(t_nav + '_nav', 'secondary_nav_item_active' );
}

dojo.addOnLoad( global_init );