Hi All

 I created a below  tree  ( the HideInNavigation is a attribute in Document  type: boolean in generic property)

-Home Page (HideInNavigation=false)
------Page News (HideInNagation=false)
-------------20101118 (HideInNagation=true)
-------------------news 1
-------------------news 2
-------------------news 3

In Page News 1 I want show the navigation menu  Home Page-->PageNews -->News 1( does not have 2010118)

to do that , i write a xslt code

<xsl:param name="currentPage"/>
<xsl:variable name="currentNode"
 select="$currentPage/@nodeName"/>
<xsl:template match="/">
<!--start
 writing XSLT -->
  <div class="nagativeURL">
  <ul>
    <xsl:for-each select="$currentPage/ancestor-or-self::*[@isDoc
                            and string(HideInNavigation) != '1']">
            --><a href="{umbraco.library:NiceUrl(@id)}">
                             <xsl:value-of select="@nodeName"/> </a>
        </xsl:for-each>
  </ul>
  </div>

But It does not work. The navigation is still have 20101118 

and the navigation look like below:

-->Home Page --> Page News-->20101118--> News 1

Thank you for your patience.