Automatically transform your <!--more--> links into links that immediately display the rest of your entry (AJAX).
When your blog is loaded, all links of this class .more-link (standard wordpress css class for "Read more..." links) are modified to no longer send the user to that post's single page display when clicked. Instead, the WordPress database is queried for that specific post, and all content after the <!--more--> tag (i.e. only what you need) is returned. The new content is then immediately displayed to the user with light animation (You can disable animation in plugin options), inline with the opening content.
Check plugin options on options page.
Thanks for debugging to firstname.lastname@example.org.
For more information, please visit the Sergey S. Betke blog.