Run Javascript between two Divs

I want to run javascript code (pop-up ads) between two div.

I want pop-up ads run just in a part of my page (content) and not run in header and footer.

my pop-up script is :

<script type="text/javascript">var zarpop_user_id = 4518;var zarpop_userMax = 3;</script>
<script type="text/javascript" src="https://zarpop.com/website/js" async></script>

how to put this code in my website ?

my index code is :

<?php get_header(); ?>
<div class="center">

<?php include (TEMPLATEPATH . '/sky-centerblock.php'); ?>
<?php if(have_posts()) : $themeu = get_bloginfo('template_url'); ?>

<?php while(have_posts()) : the_post();?>

<div class="post">

<div class="inside"><?php the_content(''); ?>

<br /><a href="<?php the_permalink() ?>" rel="bookmark" class="readmore"></a>
<div class="clr"></div>
</div>

<a href="<?php the_permalink() ?>" class="morebt"></a>

</div>

<div class="pagenumbers">


<? if (function_exists('wp_corenavi')) wp_corenavi(); ?></div>

</div>
<?php include (TEMPLATEPATH . '/sky-leftblock.php'); ?>


<?php get_footer(); ?>