/////REPLACE THIS:

<script type=\"text/javascript\" src=\"scripts/shout.js\"></script>
   <div align='left'>
   <input type='text' maxlength='50' name='shbox_text' size='20' />
   <input class='button' type='submit' value='send' />
   <input type='hidden' name='sent' value='yes' />

//////WITH THIS:

<form action='shoutbox.php' method='get' target='sbox' name='shbox' onsubmit='mysubmit()'>
<div class='roundedCorners' style='text-align:left;width:80%;border:1px solid black;padding:5px;'>
<div style='background:grey;height:25px;'><span style='font-weight:bold;font-size:12pt;'>{$lang['index_shout']}</span></div>
<br />
  <b>{$lang['index_shoutbox']}</b> [ <a href='shoutbox.php?show_shout=1&show=no'><b>{$lang['index_shoutbox_close']}</b></a> ]
  <iframe src='shoutbox.php' width='100%' height='200' frameborder='0' name='sbox' marginwidth='0' marginheight='0'></iframe>
  <br />
  <br />
   <script type=\"text/javascript\" src=\"scripts/shout.js\"></script>
  <div align='center'>
  <b>{$lang['index_shoutbox_shout']}</b>
  <input type='text' maxlength='180' name='shbox_text' size='100' />
  <input class='button' type='submit' value='{$lang['index_shoutbox_send']}' />
  <input type='hidden' name='sent' value='yes' />
</form>