Класс active к активной ссылке

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE xsl:stylesheet>
<xsl:stylesheet version="1.0"
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
   xmlns:hostcms="http://www.hostcms.ru/"
   exclude-result-prefixes="hostcms">
   <xsl:output xmlns="http://www.w3.org/TR/xhtml1/strict" doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN" encoding="utf-8" indent="yes" method="html" omit-xml-declaration="no" version="1.0" media-type="text/xml"/>
   
   <!-- МагазинГруппыТоваровНаГлавной -->
   
   <xsl:template match="/">
      <xsl:apply-templates select="/shop"/>
   </xsl:template>
   
   
   
   <!-- Шаблон для магазина -->
   <xsl:template match="/shop">
      <ul class="dropdown">
         <xsl:apply-templates select="shop_group"/>
      </ul>
   </xsl:template>
   
   
   <!-- Шаблон для групп товара -->
   <xsl:template match="shop_group">

      <xsl:variable name="nesting_level" select="count(ancestor::*)"/>
      <xsl:variable name="parent" select="@id"/>
      <xsl:variable name="parent_group_id">
         <xsl:choose>
            <xsl:when test="/shop/ТекущаяГруппа/node()"><xsl:value-of select="/shop/ТекущаяГруппа"/></xsl:when>
            <xsl:otherwise>-1</xsl:otherwise>
         </xsl:choose>
      </xsl:variable>
      
      <xsl:variable name="this_group_has_subgroups"    select="subgroups_count &gt; 0" />
      <xsl:variable name="this_group_is_current"    select="@id = $parent_group_id" />
      <xsl:variable name="has_subgroups"    select="(@id = $parent_group_id and count(shop_group) &gt; 0)
         or (@id != $parent_group_id and count(.//shop_group[@id = $parent_group_id]) &gt; 0)" />
      <xsl:variable name="item_nesting_level">
         level-<xsl:value-of disable-output-escaping="yes" select="$nesting_level+1"/>
      </xsl:variable>

      <!-- Готовим класс элемента -->
      <xsl:variable name="item_css_class">
         <xsl:if test="$this_group_has_subgroups = 1"> sub</xsl:if>
         <xsl:if test="$this_group_is_current = 1"> active</xsl:if>
      </xsl:variable>
            
      <li>
         <xsl:if test="normalize-space($item_css_class) != '' ">
            <xsl:attribute name="class">
               <xsl:value-of disable-output-escaping="yes" select="normalize-space($item_css_class)"/>
            </xsl:attribute>
         </xsl:if>
         <xsl:if test="$this_group_is_current = 1">
            <span title="{name}" hostcms:id="{@id}" hostcms:field="name" hostcms:entity="shop_group">
               <xsl:value-of disable-output-escaping="yes" select="name"/>
            </span>
         </xsl:if>
         <xsl:if test="@id != $parent_group_id">
            <a href="{url}" title="{name}" hostcms:id="{@id}" hostcms:field="name" hostcms:entity="shop_group">
               <xsl:value-of disable-output-escaping="yes" select="name"/>
            </a>
         </xsl:if>
         
         <!--<a href="{url}" hostcms:id="{@id}" hostcms:field="name" hostcms:entity="shop_group">
            <xsl:value-of disable-output-escaping="yes" select="name"/>
         </a>-->
         
         <!-- Если есть подгруппы -->
         <xsl:if test="shop_group">
            <!--<ul class="left_menu gray_link gray" id="{@id}" style="display: none;">-->
               <ul class="sub_menu"  id="{@id}">
                  <xsl:apply-templates select="shop_group"/>
               </ul>
            </xsl:if>
         </li>
      </xsl:template>
   </xsl:stylesheet>

<xsl:if test="@id = 419">
            <xsl:attribute name="class">mac</xsl:attribute>
         </xsl:if>

<xsl:if test="$current_structure_id = @id
            or count(.//structure[@id=$current_structure_id]) = 1">
            <xsl:attribute name="class">active</xsl:attribute>
         </xsl:if>

<xsl:attribute name="class">mac active</xsl:attribute>

<li>
   <!--Вычисляем класс-->
   <xsl:attribute name="class">
      <!--Проверим активность пункта-->
      <xsl:if test="$current_structure_id = @id or .//structure[@id=$current_structure_id]">
         <xsl:text>active</xsl:text>
      </xsl:if>
      <!--Пробел между классами-->
      <xsl:text> </xsl:text>
      <!--Добавим дополнительный класс, если надо-->
      <xsl:choose>
         <xsl:when test="@id = 419">
            <xsl:text>mac</xsl:text>
         </xsl:when>
         <xsl:when test="@id = 999">
            <xsl:text>win</xsl:text>
         </xsl:when>
      </xsl:choose>
   </xsl:attribute>

   <a href="{url}">
      <xsl:value-of select="name"/>
   </a>
</li>