How do I make it so that menus that are marked as "hide from navigation" gets hidden from the navigation?

Here is my code:

<xsl:stylesheet 
    version="1.0" 
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
    xmlns:msxml="urn:schemas-microsoft-com:xslt" 
    xmlns:umbraco.library="urn:umbraco.library" xmlns:Examine="urn:Examine" 
    exclude-result-prefixes="msxml umbraco.library Examine ">


<xsl:output method="xml" omit-xml-declaration="yes" />

<xsl:param name="currentPage"/>

<!-- Input the documenttype you want here -->
<!-- Typically '1' for topnavigtaion and '2' for 2nd level -->
<!-- Use div elements around this macro combined with css -->
<!-- for styling the navigation -->
<xsl:variable name="level" select="1"/>

<xsl:template match="/">

      <div class="navbar">
        <div class="navbar-inner">
          <div class="container-fluid">
              <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
                <div class="icon">
                  <span class="icon-bar">&nbsp;</span>
                  <span class="icon-bar">&nbsp;</span>
                  <span class="icon-bar">&nbsp;</span>
                </div>
              </a>
            <h3> Navigation</h3>
              <div class="nav-collapse collapse">
                <ul id="topNavigation" class="nav">
                  <li class="home">
                    <xsl:if test="$currentPage/@id = $currentPage/ancestor-or-self::* [@level=$level]/@id">
                      <xsl:attribute name="class">home current</xsl:attribute>
                    </xsl:if>
                    <a href="/">Home</a>
                  </li>
                  <xsl:for-each select="$currentPage/ancestor-or-self::* [@level=$level]/* [@isDoc and string(umbracoNaviHide) != '1']">
                    <li>
                      <xsl:if test="@id = $currentPage/@id">
                        <xsl:attribute name="class">current</xsl:attribute>
                      </xsl:if>
                      <a class="navigation" href="{umbraco.library:NiceUrl(@id)}">
                        <span>
                          <xsl:value-of select="@nodeName"/>
                        </span>
                      </a>
                    </li>


                  </xsl:for-each>
                </ul>
              </div>
          </div>
        </div>
      </div>

    </xsl:template>