Ставим куда хочется: (Желательно в отдельный глобальный блок) 
 Code
<style type="text/css"> 
 /* UcoZ Tab */ 
 .menuBg {background:#DEE7F6 !important;} 
 .Mactive {background:#DEE7F6;line-height:25px;border-right:1px solid #88A1C2;border-left:1px solid #88A1C2;border-bottom:1px solid #88A1C2;font-size:7pt;} 
 .Mactive a:link,.Mactive a:visited,.Mactive a:hover {color:#15428B;text-decoration:none;cursor:text;} 
 .MnotActive {display:block;line-height:21px;background:#F0F3F5;border-right:1px solid #88A1C2;border-bottom:1px solid #88A1C2;font-size:7pt;} 
 .MnotActive1 {display:block;line-height:21px;background:#F0F3F5;border-left:1px solid #88A1C2;border-bottom:1px solid #88A1C2;font-size:7pt;} 
 .MnotActive a:link,.MnotActive1 a:link {display:block;width:100%;color:#515151;text-decoration:none;} 
 .MnotActive a:visited,.MnotActive1 a:visited {display:block;width:100%;color:#515151;text-decoration:none;} 
 .MnotActive a:hover,.MnotActive1 a:hover {display:block;width:100%;color:#515151;text-decoration:none;background-color:#CAD9EC;cursor:pointer;} 
 /* ---------------- */ 
 </style> 
 <script type="text/javascript"> 
 // UcoZ Tab START 
 function showmods(t) { 
 if (t){ 
        document.getElementById('instMods').className='MnotActive1'; 
        document.getElementById('uninstMods').className='Mactive'; 
        document.getElementById('isInMo').style.display='none'; 
        document.getElementById('noInMo').style.display=''; 
        document.body.focus(); 
 } else { 
        document.getElementById('instMods').className='Mactive'; 
        document.getElementById('uninstMods').className='MnotActive'; 
        document.getElementById('noInMo').style.display='none'; 
        document.getElementById('isInMo').style.display=''; 
        document.body.focus(); 
 } 
 } 
 // UcoZ Tab END 
 </script> 
 <div class="xw-tl"><div class="xw-tr"><div class="xw-tcc"></div></div></div> 
 <div class="xw-ml"><div class="xw-mr"><div class="xw-mc menuBg"> 
 <div style="display:none;overflow:auto;height:350px;" id="noInMo"> 
 Содержание 2 
 </div> 
 <div style="overflow:auto;height:350px;" id="isInMo"> 
 Содержание 1 
 </div> 
 </div></div></div> 
 <div class="xw-bl"><div class="xw-br"><div class="xw-bc"><div class="xw-footer"></div></div></div></div> 
 <table border="0" cellpadding="0" cellspacing="0" width="100%"> 
 <tbody> 
 <tr> 
 <td width="6%"> </td> 
 <td align="center" valign="top" width="44%"><div id="instMods" class="Mactive"><a id="instModsL" href="javascript://" onclick="showmods(0);return false;">Текст 1</a></div></td> 
 <td align="center" valign="top" width="43%"><div id="uninstMods" class="MnotActive"><a id="uninstModsL" href="javascript://" onclick="showmods(1);return false;">Текст 2</a></div></td> 
 <td width="7%"> </td> 
 </tr> 
 </tbody> 
 </table>