Part of the enhanced comments plugin

clientside.js

jQuery(document).ready(function($){

	// move the buried comments to the bottom of the list
	if ( encom.buried == 'bottom' ) {
		var comments = $(encom.comment + '.buried').detach();
		$(encom.container).append( comments );
	} 

	// remove buried comments 
	if ( encom.buried == 'remove' ) {
		$(encom.comment + '.buried').remove();
	} 

	// move the featured images to the top of the list
	if ( encom.featured == 'top' ) {
		var comments = $(encom.comment + '.featured').detach();
		$(encom.container).prepend( comments );
	}
	
	// if hideform then show the add comment link
	if ( encom.hideform ) {
		
		$('li.tab-add-comment').show();
		$('#respond').hide();
		
	} else {
	
		$('li.tab-add-comment').hide();
	}	 	

	// add the tabs
	if ( encom.showtabs ) {
	
		var tab_c = encom.tabclasses.split(',');
		tab_c.unshift('all');

		var tab_h = encom.tabheadings.split(',');
		tab_h.unshift('All');	
		
		var tabs_html = '<ul class="comment-tabs">';
		
		for (i=0;i<tab_c.length;i++) {
		
			// only add a tab if it has comments
			if ( tab_c[i] == 'all' || $(encom.comment + '.' + tab_c[i]).length > 0 ) {
				tabs_html = tabs_html + '<li class="tab-' + tab_c[i] + '"><a class="tab-link" href="#' + tab_c[i] + '">' + tab_h[i] + '</a></li>';
			} else {
				// if empty tab is showfirst then change to 'all'
				if ( encom.showfirst == tab_c[i] ) {
					encom.showfirst = 'all';
				}
			}
		}
	
		tabs_html = tabs_html + '<li class="tab-add-comment"><a href="#add-comment">Add Comment</a></li></ul>';
		
		// add tab containers 
		//$(tabs_html).insertAfter( '.comments-title' );
		$( encom.container ).before( tabs_html );
				
		// show 'showfirst' list of comments 
		showcomments(encom.showfirst);
	
	}
	
	// move comment form to top if necessary
	if ( encom.commentform == 'top' ) {
	
		$(encom.container).before( $('#respond') );	
	
	}	
	
	// switching to view all comments
	$('a.tab-link').click(function(event){
	
		var tab_class = event.target.getAttribute('href').replace('#','');
		showcomments( tab_class );
		event.preventDefault();
	
	});
	
	// show comment form
	$('a[href="#add-comment"]').click(function(event){
	
		event.preventDefault();		
		$('#respond').toggle();
	
	});	
	
	// this caters for any handlers being on the <a> link (Isola does this)
	$('a.comment-reply-link').parent().click(function(event){
	
		event.preventDefault();
		$('#respond').show();
	
	});	
	
	
});

function showcomments(show_class){
		
	// if all then just show all, otherwise just show class
	if (show_class=='all') {
	
		jQuery(encom.comment).show();
		
	} else {
	
		jQuery(encom.comment).hide();
		jQuery(encom.comment + '.' + show_class).show();
		
	}

	// set correct tab to active
	jQuery('.comment-tabs li').removeClass('active');
	jQuery('li.tab-' + show_class).addClass('active');
	
	// if we are hiding the form then hide when we change tabs
	if ( encom.hideform ) jQuery('#respond').hide();

}

localized.js

<script type='text/javascript'>
/* <![CDATA[ */
var encom = {
	"container":"ol.comment-list",
	"comment":"li.comment",
	"featured":"top",
	"buried":"remove",
	"commentform":"top",
	"hideform":"1",
	"showtabs":"1",
	"tabclasses":"featured,bypostauthor",
	"tabheadings":"Featured,Author",
	"showfirst":"featured"
};
/* ]]> */
</script>

partial_plugin.php

function encom_enqueue_scripts() {

	global $encom_default;

	/* only need to enqueue if a single page */
	if ( !is_admin() ) {
	
		// Register the init script
		wp_register_script( 'encom_init',  plugins_url( 'js/init.js', __FILE__ ), array('jquery'), null, true );
				
		// Now we can localize the script with our data.
		$encom_array = get_option( 'enhanced_comments_settings' , $encom_default );
		wp_localize_script( 'encom_init', 'encom', $encom_array );

		// Enqueue the scripts.
		wp_enqueue_script( 'encom_init' );		

	}
	
}
 
add_action( 'wp_enqueue_scripts' , 'encom_enqueue_scripts' );