[Plugin: Get Better Excerpt] improvement over v 1.02

i added some simple additional arguments to satisfy my need of better controlling the output in regards of tags.

function get_better_excerpt($options='') {

	$ns_options = array(
                    "sentence" => false,
                    "words" => "20",
                    "before"  => "",
                    "after" => "",
					"show" => false,
					"skipexcerpt" => true,
					"link" => false,
					"trail" => " …",
					"allowed" => ''
                   );

	$options = explode("&",$options);

	foreach ($options as $option) {

		$parts = explode("=",$option);
		$options[$parts[0]] = $parts[1];

	}
	if ($options['sentence']) {$ns_options['sentence'] = $options['sentence'];}
	if ($options['words']) {$ns_options['words'] = $options['words'];}
	if ($options['before']) {$ns_options['before'] = $options['before'];}
	if ($options['after']) {$ns_options['after'] = $options['after'];}
	if ($options['show']) {$ns_options['show'] = $options['show'];}
	if ($options['skipexcerpt']) {$ns_options['skipexcerpt'] = $options['skipexcerpt'];}
	if ($options['link']) {$ns_options['link'] = $options['link'];}
	if ($options['allowed']) {$ns_options['allowed'] = $options['allowed'];}
	if (isset($options['trail'])) {$ns_options['trail'] = $options['trail'];}

	global $more;
	$more = 1;
	if ($ns_options['skipexcerpt']) {
		if ($ns_options['sentence']) {
			$excerpt = explode('.', strip_tags(get_the_content(), $ns_options['allowed']), $ns_options['sentence']+1);
		} else {
			$excerpt = explode(' ', strip_tags(get_the_content(), $ns_options['allowed']), $ns_options['words']+1);
		}
	} else {
		if ($ns_options['sentence']) {
			$excerpt = explode('.', strip_tags(get_the_excerpt(), $ns_options['allowed']), $ns_options['sentence']+1);
		} else {
			$excerpt = explode(' ', strip_tags(get_the_excerpt(), $ns_options['allowed']), $ns_options['words']+1);
		}
	}
	array_pop($excerpt);
	$excerpt = implode(" ",$excerpt);
	$excerpt = $excerpt.$ns_options['trail'];

	if ($link) {
		$link = get_permalink();
		$title = get_the_title();
		$excerpt = "<a href='$link' title='$title'>".$excerpt."</a>";
	}

	$excerpt = $ns_options['before'].$excerpt.$ns_options['after'];

	if ($show) {echo $excerpt;} else {return $excerpt;}
}