Excerpt Length Limit, Manual and Automatic

I’m using the following code to change my excerpt:

function new_excerpt_length($length) {

	return 45;

}

add_filter('excerpt_length', 'new_excerpt_length');

function new_excerpt_more($excerpt) {

		return str_replace('[...]', '<span>...</span><div class="excerpt-more"><a href="'.get_permalink().'">Read more &raquo;</a></div>', $excerpt);

}

add_filter('excerpt_more', 'new_excerpt_more');

This works perfectly for auto-generating an excerpt. But if I enter an excerpt manually for a post, this code does nothing.

Any advice on how I can get this same result for manually entered posts as well?