Next / Previous Links for Carts Tab v1.0

Adds Next / Previous images to the cart page to allow easy navigation between carts.

#
#----------[ OPEN ]----------
#
admin/tabs/AdminCarts.php

#
#----------[ FIND ]----------
#
// display cart header
  echo '<h2>'.(($customer->id) ? $customer->firstname.' '.$customer->lastname : $this->l('Guest')).' - '.$this->l('Cart #').sprintf('%06d', $cart->id).' '.$this->l('from').' '.$cart->date_upd.'</h2>';

#
#----------[ REPLACE WITH ]----------
#
if ($prevCart = Db::getInstance()->getValue('SELECT `id_cart` FROM `'._DB_PREFIX_.'cart` WHERE `id_cart` < '.(int)$cart->id.' ORDER BY `id_cart` DESC'))
   $prevCart = '<a href="'.$currentIndex.'&id_cart='.$prevCart.'&viewcart&token='.Tools::getValue('token').'"><img style="width: 24px; height: 24px" src="../img/admin/arrow-left.png" /></a>';
  if ($nextCart = Db::getInstance()->getValue('SELECT `id_cart` FROM `'._DB_PREFIX_.'cart` WHERE `id_cart` > '.(int)$cart->id.' ORDER BY `id_cart` ASC'))
   $nextCart = '<a href="'.$currentIndex.'&id_cart='.$nextCart.'&viewcart&token='.Tools::getValue('token').'"><img style="width: 24px; height: 24px" src="../img/admin/arrow-right.png" /></a>';

  // display cart header
  echo '<h2>'.$prevCart.' '.(($customer->id) ? $customer->firstname.' '.$customer->lastname : $this->l('Guest')).' - '.$this->l('Cart #').sprintf('%06d', $cart->id).' '.$this->l('from').' '.$cart->date_upd.' '.$nextCart.'</h2>';