[TYPO3-shop] how to show product is offer in list

[Leen]

Hello,

The products marked as offer, can be shown in a seperate listview.
I would like to hava a regular listview but in the template a marker like :
<!-- ###ITEM_SINGLE_DISPLAY_LISTOFFERS### start -->
This is an offer
<!-- ###ITEM_SINGLE_DISPLAY_LISTOFFERS### end -->

In the listview the text "this is an offer" should only show up in the 
products marked as offer.(was thinking of an image to draw attention)
The same kind of thing could be done with highlights and new items.