логотип - Вопросы по CSS

#logo{
  width: 240px;
  height: 140px;
  background: url(../images/sto.png) top left no-repeat;}

<header>
<a href = "<?php echo JURI::base(); ?>">
<div class="logo"></div>
</a>
</header>

background: url(../../images/sto.png) top left no-repeat;}

<div class="logo"></div>

$app = JFacroty:getApplication();
$menu = $app->getMenu();
$id = $menu->getDefault()->id;
$isFront = $id == $menu->getActive()->id;

<?php if (!$isFront) : ?>
<a href="..."><div class="logo"></div></a>
<?php else : ?>
<div class="logo"></div>
<?php endif; ?>

$app = JFacroty:getApplication();
$menu = $app->getMenu();
$id = $menu->getDefault()->id;
$isFront = $id == $menu->getActive()->id;

<?php defined('_JEXEC') or die('Restricted access');

<div class="logo grid_4"><a href="http://адрес сайта" title=""></a></div>

.logo {
display: block;
background: url(...) no-repeat 0 0;
width: 336px;
height: 104px;
}

.logo a {
display: block;
width: 336px;
height: 104px;
}

<a href="..." title="На главную" id="home_link">
   <img id="lnk_logo" src="<?php echo $templ?>/images/logo.png" alt="Мой сайт" width="300" height="100" />
</a>

#home_link {display:block;}

<?php
if(!JMenuSite::getInstance('site')->getActive()->home){
    echo '<a href="http://stok-info.ru"><div id="logo"></div></a>';
} else {
    echo '<div id="logo"></div>';
};
?>

$templ = $this->baseurl."/templates/".$this->template;

if (JURI::base(true)){
	$href = JURI::base(true);
} else { 
	$href = '/';
}

if(!JMenuSite::getInstance('site')->getActive()->home){
  echo '<a href="'.$href.'">'.
          '<img src="'.$templ.'"/images/logo.png" />'.
       '</a>';
} else {
   echo '<img src="'.$templ.'"/images/logo.png" />';
};

<?php 
if(!JMenuSite::getInstance('site')->getActive()->home){ 
    echo '<a href="http://stok-info.ru/" title=""><img src="templates/master/images/stok-info.png" alt="" width="230" height="128" /></a>'; 
} else { 
  echo '<img src="templates/master/images/stok-info.png" alt="" width="230" height="128" />'; 
}; 
?>

<?php
/*-----logolink-----*/
$option = JRequest::getVar('option');
$view = JRequest::getVar('view');
if (($option == 'com_content') && ($view == 'article')) { //если мы на странице контента:

	$articleId = JRequest::getVar('id');

	jimport('joomla.application.component.model');
	$articlesModel = JModel::getInstance('ContentModelArticle');

	$article = $articlesModel->getItem($articleId);
	$categoryId = $article->catid;

	$logolink = JRoute::_(ContentHelperRoute::getCategoryRoute($categoryId));

} else { //иначе:

	if (JURI::base(true)){
		$logolink = JURI::base(true);
	} else { 
		$logolink = '/';
	}
}
/*-----//logolink-----*/
?>

<a href="<?php echo $logolink; ?>" title="На главную" id="home_link">Превед, я главная страница!</a>