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; }