TinyMCE won't submit my form data!! Please help (code included)

The editor appears, but when I enter test data, it doesn't submit anything to my server, nor does the page change, the save button basically does nothing. Whereas it works fine without the editor...

Here's this code:

<?php include "header.php" ?>

      <div id="adminHeader">

        <h2>Admin</h2>

        <p>You are logged in as <b><?php echo htmlspecialchars( $_SESSION['username']) ?></b>. <a href="admin.php?action=logout"?>Log out</a></p>

      </div>

      <h1><?php echo $results['pageTitle']?></h1>

      <form action="admin.php?action=<?php echo $results['formAction']?>" method="post">

            <script type="text/javascript" src="tinymce/jscripts/tiny_mce/tiny_mce.js"></script>

      <script type="text/javascript" src="tinymce/jscripts/tiny_mce/jquery.tinymce.js"></script>

            <script type="text/javascript">

tinyMCE.init({

  theme : "advanced",

        mode : "textareas",

        theme_advanced_buttons3_add : "fullpage"

});

</script>

      <input type="hidden" name="articleId" value="<?php echo $results['article']->id ?>"/>

      <?php if ( isset( $results['errorMessage'] ) ) { ?>

        <div class="errorMessage"><?php echo $results['errorMessage'] ?></div>

      <?php } ?>

        <ul>

          <li>

              <label for="title">Article Title</label>

              <input type="text" name="title" id="title" placeholder="Name of the article" required autofocus maxlength="255" value="<?php echo htmlspecialchars( $results['article']->title )?>" />

          </li>

          <li>

              <label for="summary">Article Summary</label>

              <textarea name="summary" id="summary" placeholder="Brief description of the article" required maxlength="1000" style="height: 5em;"><?php echo htmlspecialchars( $results['article']->summary )?></textarea>

          </li>

          <li>

              <label for="content">Article Content</label>

              <textarea value="" name="content" id="content" placeholder="The HTML content of the article" required maxlength="100000" style="height: 30em;"><?php echo htmlspecialchars( $results['article']->content )?></textarea>

          </li>

          <li>

              <label for="publicationDate">Publication Date</label>

              <input type="date" name="publicationDate" id="publicationDate" placeholder="YYYY-MM-DD" required maxlength="10" value="<?php echo $results['article']->publicationDate ? date( "Y-m-d", $results['article']->publicationDate ) : "" ?>" />

          </li>

        </ul>

        <div class="buttons">

          <input type="submit" name="saveChanges" value="Save Changes" />

          <input type="submit" formnovalidate name="cancel" value="Cancel" />

        </div>

      </form>

<?php if ( $results['article']->id ) { ?>

      <p><a href="admin.php?action=deleteArticle&articleId=<?php echo $results['article']->id ?>" onclick="return confirm('Delete This Article?')">Delete This Article</a></p>

<?php } ?>

<?php include "footer.php" ?>

As I said, it works fine until the editor is added!