Alter the 'On-Sale' Tag based on category

[Mictor2010]

Hi I have tried many variations of this code

            {if isset($product.on_sale) && $product.on_sale && isset($product.show_price) && $product.show_price && !$PS_CATALOG_MODE}<span class="discount">
                {if ($category->id_category == 9) OR ($category->id_parent ==9)}Suit Event
                {else}{l s='On sale'}{/if}</span>
                
                {elseif isset($product.reduction) && $product.reduction && isset($product.show_price) && $product.show_price && !$PS_CATALOG_MODE}<span class="discount">
                {if ($category->id_category == 9) OR ($category->id_parent == 9)}Suit Event{else}{l s='On Sale'}{/if}

to try and make it so that in a different category the on sale words are changed to Suit event. This code will work for the first page however if you add some sort of filter to the page it stops working. Can anyone advise on how to alter this.

category to display 'Suit event' - http://www.brigdens.com/9-suits

example pages not working -

http://www.brigdens.com/9-suits#/

http://www.brigdens.com/9-suits#/page-2

http://www.brigdens.com/9-suits#/jacket_size-36_short