Image selector doesn't show the whole the filename

	foreach($this->dirContent as $k => $content) {
		$chk_uid = 'hikaGalleryChk_' . $k . '_' . uniqid();
?>
	<li class="hikaGalleryItem">
		<a class="hikaGalleryPhoto" href="#" onclick="return window.hikagallery.select(this, '<?php echo $chk_uid; ?>');">

	hikashop_loadJsLib('tooltip');
	foreach($this->dirContent as $k => $content) {
		$chk_uid = 'hikaGalleryChk_' . $k . '_' . uniqid();

		$tooltip = '';
		if(strlen($content->filename) > 15)
			$tooltip = ' data-toggle="hk-tooltip" data-title="'.htmlentities($content->filename).'"';
?>
	<li class="hikaGalleryItem">
		<a class="hikaGalleryPhoto" href="#" onclick="return window.hikagallery.select(this, '<?php echo $chk_uid; ?>');"<?php echo $tooltip; ?>>