Images for Navigation

Hello,

This is one of the best modules on Drupal, so, first and foremost, thank you!

I'm trying to modify the navigation links ("First", "Previous", etc.) into images. I recognize that the links are modifiable in the daily.module file in this section:

if (isset($node->daily_date)) {
$dateformat = variable_get('daily_date', "large");
$prevnext = _daily_get_prev_next($node);
$term_name = $prevnext['term_name'];
if (array_key_exists('first', $prevnext)) {
$links['daily_first'] = array(
'title' => t('First'),
'href' => "node/". $prevnext['first']->nid,
'attributes' => array('title' => $term_name .": ". _daily_format_date($prevnext['first']->date, $dateformat))
);

I've tried to put an image tag (e.g.: ) in the 'title' line, but it exports it with double quotes, and not code.

Am I missing something here?

Thanks again!