Скрытие модуля и присвоение нового класса для DIV - Joomla 2.5: Настройка и оптимизация

<div id="all">
  <?php if($this->countModules('position-1')) : ?>
<div id="left">
<div id="left2">
  <jdoc:include type="message" />
<jdoc:include type="component" />
<jdoc:include type="modules"  name="position-3" style="xhtml"/>
</div>
</div>

   <?php if (JRequest::getVar('view', null)!= 'article') { ?>
  <div id="center">   
  <jdoc:include type="modules"  name="position-1" style="xhtml"/>           
</div>
  <?php } else { } ?>
  
  <?php else: ?>
<div class="left_full">
  <jdoc:include type="message" />
<jdoc:include type="component" />
<jdoc:include type="modules"  name="position-3" style="xhtml"/></div>
<?php endif; ?>

<div id="right">
<jdoc:include type="modules"  name="position-2" style="xhtml"/>
</div>

</div>
------css--------
#all {
  width:80%;
  margin:0 auto;
  min-width:800px;
  margin-top:20px;
}

#left {
  float:left;
  width:50%;
}

#center {
  float:left;
  width:25%;
}

.left_full {
  float:left;
  width:70%;
}

#right {
  float:left;
  width:25%;
  height:100px;
}

<div id="all">
  
<?php if
((JRequest::getVar('view', null)!= 'article') && ($this->countModules('position-1'))) { ?>
<div id="left"><div id="left2">
  <jdoc:include type="message" />
<jdoc:include type="component" />
<jdoc:include type="modules"  name="position-3" style="xhtml"/>
</div>
</div>

  <div id="center">   
  <jdoc:include type="modules"  name="position-1" style="xhtml"/>           
</div>
<?php } else {?>
<div class="left_full">
  <jdoc:include type="message" />
<jdoc:include type="component" />
<jdoc:include type="modules"  name="position-3" style="xhtml"/></div>
<?php } ?>
 
 
 <div id="right">
<jdoc:include type="modules"  name="position-2" style="xhtml"/>
</div>
</div>