How can I style zen_create_sort_heading output without messing the core?

Hi
I was trying to style the product listings.
I only have price, and name....and image.

First , is there a way to not have the image in the sort by ?
THe only way I can do it is clearing the $lc_text related to the image...

case 'PRODUCT_LIST_IMAGE':
    $lc_text = '';
    $lc_align = 'center';
    $zc_col_count_description++;
    break;

But, I want to add some class or even add a space bettween the name and the "+".
I already try just to give a blank space, and   + , in the configuration section.

To the class, looking at product_listings , looks like it has the same class name that is presente in the function... but no changes happen in here:

$list_box_contents[0][$col] = array('align' => $lc_align,
                                      'params' => 'class="productListing-heading"',
                                      'text' => $lc_text
                                       );

Is there a way to achieve this without messing with this function ?

// Return table heading with sorting capabilities
function zen_create_sort_heading($sortby, $colnum, $heading) {
$sort_prefix = '';
$sort_suffix = '';

if ($sortby) {
  $sort_prefix = '<a href="' . zen_href_link($_GET['main_page'], zen_get_all_get_params(array('page', 'info', 'sort')) . 'page=1&sort=' . $colnum . ($sortby == $colnum . 'a' ? 'd' : 'a')) . '" title="' . zen_output_string(TEXT_SORT_PRODUCTS . ($sortby == $colnum . 'd' || substr($sortby, 0, 1) != $colnum ? TEXT_ASCENDINGLY : TEXT_DESCENDINGLY) . TEXT_BY . $heading) . '" class="productListing-heading">' ;
  $sort_suffix = (substr($sortby, 0, 1) == $colnum ? (substr($sortby, 1, 1) == 'a' ? PRODUCT_LIST_SORT_ORDER_ASCENDING : PRODUCT_LIST_SORT_ORDER_DESCENDING) : '') . '</a>';
}

return $sort_prefix . $heading . $sort_suffix;

}

Thanks

Using css would be a way that could be used to control the visibility of the image. Not sure I understand where this image is being displayed that is not desired. There is guidance on generating a CSS file located in the includes/templates/template_default/css directory...

The applicable css code can be seen typically through inspection of the source code of the displayed page. An appropriate css file could then be generated with the desired css to hide the image(s).

Thanks
I think the image is there because on configuration -> Product Listing , I have it on....I think everything that is On there, it display on that productListing-heading ... i guess.

About the style, I think I could style it by css , I think I want to have a kind of button, and I'm using foundation, so yep...
but the space for "+" and "-"....
Now i have this : Name+ , I would like to have Name +

THis is probably easy... but haven't found how to do it

Right
Language file :frusty:
Of course !