http://www.columbiatelluride.com/NEW/activities/index.php

click on the above link

notice that the menu items stay highlighted when in that section of the site and the sub nav always shows; In this case it activities

if you hover on the list to the right of activites everything behaves as should; the corresponding subnav changes based on what section you hover over

If you hove on items to the left of activites; nothing changes.

Heres is the html code
<ul id="mainNav">
<li class="menuparent"><a href="http://www.columbiatelluride.com/NEW/specials/index.php" <?php if ($body_tag == 'id="specials"') echo 'class="highlight"'; ?>>Specials</a>
<ul<?php if ($body_tag == 'id="specials"') echo ' class="unhidemenu"'; ?>>
<li><a href="http://www.columbiatelluride.com/NEW/specials/winter-specials.php">Winter Specials</a></li>
<li><a href="http://www.columbiatelluride.com/NEW/specials/summer-specials.php">Summer Specials</a></li>
</ul>
</li>
</ul>


here is a link to the css http://www.columbiatelluride.com/NEW/css/navigation.css

if anybody has any idea whay this is happening I would truly be appreciative

thanks Kevin