[Plugin: Google Analytics for WordPress] Load jQuery and comment tracking code modification request

On pages that have no comments there is no need to load jQuery or the comment-reply script. To make pages load faster I modified your plugin to only load the comment tracking code and jQuery when there are more than zero comments. I have provided the code below, and was hoping you could add this to the plugin.

In the googleanalytics.php file from line 1449 to line 1490 (after the code modification) below:

function track_comment_form_head() {
    if (is_singular() && get_comments_number() > 0) {
        global $post;
        $yoast_ga_options = get_option('Yoast_Google_Analytics');
        if ( yoast_ga_do_tracking()
			&& isset( $yoast_ga_options["trackcommentform"] )
			&& $yoast_ga_options["trackcommentform"]
			&& ( 'open' == $post->comment_status ) )
            wp_enqueue_script('jquery');
    }
}
add_action('wp_print_scripts','track_comment_form_head');

$comment_form_id = 'commentform';
function yoast_get_comment_form_id($args) {
	global $comment_form_id;
	$comment_form_id = $args['id_form'];
	return $args;
}
add_filter('comment_form_defaults', 'yoast_get_comment_form_id',99,1);

function yoast_track_comment_form() {
	if (get_comments_number() > 0) {
    global $comment_form_id, $post;
    $yoast_ga_options = get_option('Yoast_Google_Analytics');
    if ( yoast_ga_do_tracking() && $yoast_ga_options["trackcommentform"] ) {
?>
<script type="text/javascript">
    jQuery(document).ready(function() {
        jQuery('#<?php echo $comment_form_id; ?>').submit(function() {
            _gaq.push(
                ['_setAccount','<?php echo $yoast_ga_options["uastring"]; ?>'],
                ['_trackEvent','comment','submit']
            );
        });
    });
</script>
<?php
    }
  }
}
add_action('comment_form_after','yoast_track_comment_form');

http://ww.wp.xz.cn/extend/plugins/google-analytics-for-wordpress/