a.swap {
display: block;
text-decoration: none;
width:94px;
height:40px;
background-image:url(img/butt.png);
}
a.swap:hover {
background-image:url(img/butt_on.png);
}
a:link {
color:#000000;
}
a:active {
color:#000000;
}
a:visited {
color:#000000;
}

  <table border="0" cellpadding="0" cellspacing="0" width="935" height="30">

<tr>

<td width="99" height="40" id="menu-space">&nbsp;</td>


<td width="94" height="40" id="menu" >

   <a href="index.html" class="swap"><center>Главная</center></a>
  
</td>
<td width="94" height="40">

   <a href="price.html" class="swap"><center>Цены</center></a>
  
</td>
<td width="94" height="40">

   <a href="rooms.html" class="swap"><center>Комнаты</center></a>
  
</td>

<td width="94" height="40">

   <a href="bonus.html" class="swap"><center>Акции</center></a>
  
</td>

<td width="94" height="40">

   <a href="zakaz.html" class="swap"><center><font size="2">Мониторинг</font></center></a>
  
</td>

<td width="94" height="40">

   <a href="contacts.html" class="swap"><center>Контакты</center></a>
  
</td>

<td width="94" height="40">

   <a href="stat.html" class="swap"><center>Статьи</center></a>
  
</td>

<td width="94" height="40">

   <a href="map-site.html" class="swap"><center><font size="2">Карта сайта</font></center></a>
  
</td>

<td width="94" height="40">

   <a href="about.html" class="swap"><center>О нас</center></a>
  
</td>

</tr>

  </table>