This recipe shows you an option to add dividers between your products. It makes your product listing much clearer, and shopping at your store a pleasant experience.
Your Product Listing page will look like the following screenshot with a light, gray separator line added between the rows of products:
$list_box_contents[$cur_row][] = array('align' => $lc_align, 'params' => 'class="productListing-data"', 'text' => $lc_text); }
With this array, the content of each row is generated.
Immediately below it add the following code that will check how many rows you are actually showing and will set the colspan accordingly, creating a line that will be displayed after each product, and separating it from the last one...