function addField() { 
  var tableName   = $('#tableName').val(); 
  var fieldname   = ''; 
  var thickboxUrl = "?menu=database&action=editTable&addField=1&tableName=" +tableName+ "&fieldname=" +fieldname 
                  + "&TB_iframe=true&height=600&width=700&modal=true"; 
 
  tb_show(null, thickboxUrl, false); // code reference: http://jquery.com/demo/thickbox/thickbox-code/thickbox.js 
}

// 
function addField() { 
 
  // set iframe height 
  var iframeHeight = 600; 
  var windowHeight = document.documentElement.clientHeight; 
  if (windowHeight > 0)   { iframeHeight = parseInt(windowHeight * 0.80); } 
  if (iframeHeight < 200) { iframeHeight = 200; } 
  if (iframeHeight > 600) { iframeHeight = 600; } 
 
  // get url 
  var tablename = $('#tableName').val(); 
  var fieldname = ''; 
  var url = "?menu=database&action=editTable&addField=1" 
          + "&tableName=" +tablename 
          + "&fieldname=" +fieldname 
          + "&TB_iframe=true&width=700&height=" + iframeHeight 
          + "&modal=true"; 
 
  // show thickbox 
  var caption    = null; 
  var imageGroup = false; 
  tb_show(caption, url, imageGroup); 
}

   </h2> 
    <?php if ($CURRENT_USER['isAdmin']): ?> 
      Admin: 
      <a href="?menu=database&action=editTable&tableName=<?php echo $tableName ?>" >Edit Section</a> 
    <?php endif ?>

<?php if ($CURRENT_USER['isAdmin']): ?>  
       <option value="?menu=database&action=editTable&tableName=<?php echo $tableName ?>">Edit Section</option> 
<?php endif ?>

<?php if ($CURRENT_USER['isAdmin']): ?> 
    <option value="editSection"><?php _e('Admin: Edit Section') ?></option> 
<?php endif; ?>

  elseif ($action == 'categoryMove')           { categoryMove();  } 
 
  elseif ($action == 'editSection')       { 
    $url =  'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['SCRIPT_NAME']; 
    $url .= '?menu=database&action=editTable&tableName=' . urlencode(@$_REQUEST['menu']); 
    header("Location: $url"); 
    exit; 
  }