function previewThumbnails()
{
$thumbs = $this->previewThumbnailsArray();
$index = $this->image->index();
$ret = "";
foreach ($thumbs as $key => $thumb) {
$thumbClass = "sgThumbnailPreview";
if ($key == $index - 1) {
$thumbClass .= " sgThumbnailPreviewPrev";
} elseif ($key == $index) {
$thumbClass .= " sgThumbnailPreviewCurrent";
} elseif ($key == $index + 1) {
$thumbClass .= " sgThumbnailPreviewNext";
}
$ret .= $thumb->thumbnailLink($thumbClass, "preview") . "\n";
}
return $ret;
}
