here is a way to get your posts in many different ways into an array:
<?php $args = array(
'posts_per_page' => 5,
'offset' => 0,
'category' => '',
'category_name' => '',
'orderby' => 'post_date',
'order' => 'DESC',
'include' => '',
'exclude' => '',
'meta_key' => '',
'meta_value' => '',
'post_type' => 'post',
'post_mime_type' => '',
'post_parent' => '',
'post_status' => 'publish',
'suppress_filters' => true
);
$posts_array = get_posts( $args ); ?>
I think Descending order should make it go from the latest post but if not try Ascending.
As far as getting your php array into a javascript array it can be done with the push method like so:
<script type="text/javascript" language="javascript">
var pausecontent = new Array();
<?php foreach($posts_array as $key => $val){ ?>
pausecontent.push('<?php echo $val; ?>');
<?php } ?>
</script>
Anyway hope that helps, should work fine but let me know if you run into any complications