Where do I insert a hr tag in the index.php to create a line between posts?

Hi All,

I know this one has been covered a Million times, but no matter how much I search, I just can’t find an example that matches my index.php code.

I want to insert a <hr /> between my posts in my blog, and I’m having trouble finding out where to put it. I have experimented a bit, but the line either appears at the top only, bottom only or the entire page doesn’t show at all.

Bonus info – the template has been created with Artisteer, not sure that will change anything. Once the line is inserted in-between the posts, I will style it in the style.css file.

Can anyone tell me where to put it in the code below?

<?php get_header(); ?>
<div class="art-layout-wrapper">
    <div class="art-content-layout">
        <div class="art-content-layout-row">
            <div class="art-layout-cell art-content">
			<?php get_sidebar('top'); ?>
			<?php
				if(have_posts()) {

					/* Display navigation to next/previous pages when applicable */
					if ( theme_get_option('theme_' . (theme_is_home() ? 'home_' : '') . 'top_posts_navigation' ) ) {
						theme_page_navigation();
					}

					/* Start the Loop */
					while (have_posts()) {
						the_post();
						get_template_part('content', get_post_format());
					}

					/* Display navigation to next/previous pages when applicable */
					if (theme_get_option('theme_bottom_posts_navigation')) {
						 theme_page_navigation();
					}

				} else {

					 theme_404_content();

				}
		    ?>
			<?php get_sidebar('bottom'); ?>
              <div class="cleared"></div>
            </div>
            <div class="art-layout-cell art-sidebar1">
              <?php get_sidebar('default'); ?>
              <div class="cleared"></div>
            </div>
        </div>
    </div>
</div>
<div class="cleared"></div>
<?php get_footer(); ?>

Thanks!