Checking value of meta data and returning post differently styled

I’m running (or rather, trying) the following script to check whether the meta data “full” has a value and return the post’s content differently.

<?php if (have_posts()) :
    while (have_posts()) : the_post();
         $customField = get_post_custom_values("full");
       	 if (isset($customField[0])) {
              //Custom field is set, display a full post
              the_title();
              the_content();
         } else {
              // No custom field set, let's display an excerpt
              the_title();
              the_excerpt();
    endwhile;
endif;
?>

However, this generates the following error and I can’t seem to figure out why. I’m having a hard time understanding why.

Parse error: parse error, unexpected T_ENDWHILE