Stock level not displayed on productpage

if($this->row->product_quantity==-1){ ?> <div class="hikashop_product_stock"> <?php echo $this->cart->displayButton(JText::_('ADD_TO_CART'),'add',$this->params,$url,$this->ajax,'',$this->row->product_max_per_order,$this->row->product_min_per_order); }elseif($this->row->product_quantity>0){ ?> <div class="hikashop_product_stock"> <?php echo '<span class="hikashop_product_stock_count">'.JText::sprintf('X_ITEMS_IN_STOCK',$this->row->product_quantity).'</span><br/>'; $config =& hikashop_config(); if($config->get('button_style','normal')=='css'){ echo '<br />'; } if($this->row->product_max_per_order<=0 || $this->row->product_max_per_order>$this->row->product_quantity) $this->row->product_max_per_order = $this->row->product_quantity; echo $this->cart->displayButton(JText::_('ADD_TO_CART'),'add',$this->params,$url,$this->ajax,'',$this->row->product_max_per_order,$this->row->product_min_per_order); }else{ ?> <div class="hikashop_product_no_stock"> <?php echo JText::_('NO_STOCK'); $waitlist = $this->config->get('product_waitlist',0); if(hikashop_level(1) && ($waitlist==2 || ($waitlist==1 && !empty($this->element->product_waitlist)))){ ?> </div><div id="hikashop_product_waitlist_main" class="hikashop_product_waitlist_main"> <?php $empty=''; $params = new JParameter($empty); echo $this->cart->displayButton(JText::_('ADD_ME_WAITLIST'),'add_waitlist',$params,hikashop_completeLink('product&task=waitlist&cid='.$this->row->product_id),'window.location=\''.str_replace("'","\'",hikashop_completeLink('product&task=waitlist&cid='.$this->row->product_id)).'\';return false;'); } }?> </div>

X_ITEMS_IN_STOCK="%s items in stock"