Next Button displayed both top and bottom

I would like to display the next button in checkout in both top and bottom how can i do it?

Ive already tried but when i copy paste it breaks evwrything and display error message. Can you please tell me wich code to copy and whre to insert it. It shold be at the syart bellow the navigation steps

Are you sure is that code? i mean i want the button next in checkout not the product buttons, the button y want is continue shopping and i think it is in step view.
<?php

if($this->continueShopping){
if(strpos($this->continueShopping,'Itemid')===false){
if(strpos($this->continueShopping,'index.php?')!==false){
$this->continueShopping.=$url_itemid;
}
}
if(!preg_match('#^https?://#',$this->continueShopping)) $this->continueShopping = JURI::base().ltrim($this->continueShopping,'/');
echo $this->cart->displayButton(JText::_('CONTINUE_SHOPPING'),'continue_shopping',$this->params,JRoute::_($this->continueShopping),'window.location=\''.JRoute::_($this->continueShopping).'\';return false;','id="hikashop_checkout_shopping_button"');
}
}
?>

<div class="clear_both"></div>
i copy that code but it does not work it displays an error

Hi,
You'll just have to use the following code at the beginning of the checkout view's file of the first action of each step of your checkout workflow ("Hikashop->System->Configuration->Checkout"), for example if the first action of one of your step is address, then you'll have to add this code at the begining of the address file of the checkout view of your front-end template through "Hikashop->Display->Views" :

  if($this->nextButton)
    {
      if($this->step == (count($this->steps) - 2)) {
        $checkout_next_button = JText::_('CHECKOUT_BUTTON_FINISH');
        if($checkout_next_button == 'CHECKOUT_BUTTON_FINISH')
          $checkout_next_button = JText::_('NEXT');
      } else
        $checkout_next_button = JText::_('NEXT');
      echo $this->cart->displayButton($checkout_next_button,'next',$this->params, hikashop_completeLink('checkout&task=step&step='.$this->step+1),'if(hikashopCheckChangeForm(\'order\',\'hikashop_checkout_form\')){ if(hikashopCheckMethods()){ document.getElementById(\'hikashop_validate\').value=1; document.forms[\'hikashop_checkout_form\'].submit();}} return false;','id="hikashop_checkout_next_button"');
      $button = $this->config->get('button_style','normal');
         if ($button=='css')
          echo '<input type="submit" style="position: absolute; left: -9999px; width: 1px; height: 1px;"/></input>';
    }

and there is no way to add it in step before the form starts? it woould be in all the pages.
i tried copy/paste there but did not work.