load the_excerpt OR the_content in lightbox effect popup

Hi there, simple question.

Ive managed to get this sofar:

<ul id="container">

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

            <li class="over_ons_container">
              <a href="#" target="_blank">
                <h1 class="entry-title"><?php the_title(); ?></h1>
		    <?php echo get_the_post_thumbnail($page->ID, 'ptportfolio-thumb-over-ons'); ?>
                <div><p><?php the_excerpt(); ?>»</p></div>
	      </a>
            </li>

	 <?php endwhile; ?>

  </ul>

I would like to hide the excerpt, and only show it when the link (image) is clicked.

Or better yet, show the entire page.. when the image is clicked.

Advice appreciated, thank you.