Hi, I have a problem with the rendering of a folder of Image through parameter mediacurrent, and I understand where nis mistake

<? Xml version = "1.0" encoding = "UTF-8"?>
<! DOCTYPE xsl: Stylesheet [<! ENTITY nbsp ""> <! ENTITY raquo "» "> <! ENTITY laque '">]>
<Xsl: stylesheet
version = "1.0"
http://www.w3.org/1999/XSL/Transform"" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">xmlns: xsl = "http://www.w3.org/1999/XSL/Transform"
xmlns: msxml = "urn: schemas-microsoft-com: xslt"
xmlns: umbraco.library = "urn: umbraco.library"
exclude-result-prefixes = "msxml umbraco.library">


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

<xsl:param name="currentPage"/>


<xsl:template match="/">

<! - Start writing XSLT ->

<! -
<xsl:variable name="bannl" select="//macro/bannl/node/@id"/>
<xsl:for-each select="//macro/bannl/node">
<xsl:value-of select="./@id" />
<a href="{//macro/bannl/node/data [@alias='umbracoFile']}" rel='lightbox' title="{//macro/bannl/node/didascalia}">
                <img>
                    <xsl:attribute name="src"> / umbraco / imageGen.aspx? image = <xsl:value-of select="//macro/selectedMedia/node/data [@alias='umbracoFile']" /> & width = 230 & height = 115 & constrain = true </ xsl: attribute>
                    <xsl:attribute name="class"> Reflect rheight25 ropacity35 </ xsl: attribute>
                    <xsl:attribute name ="style"> border: none; </ xsl: attribute>
                </ Img>

</ A>
</ Xsl: for-each>

<xsl:variable name="bannl" select="/macro/bannl/node"/>
 
<xsl:for-each select="/macro/bannl/node">
<xsl:value-of select="@nodeName"/>
<xsl:value-of select="@id"/>
</ Xsl: for-each>
->

<xsl:variable name="bannl" select="/macro/bannl/node/@id"/>
<xsl:if test="$bannl != ">''
<xsl:for-each select="/macro/bannl/node/@id">
sss
<img>
<xsl:attribute name="src">
<xsl:value-of select="umbraco.library:GetMedia($bannl,'false')/data [@alias ='umbracoFile']"/>
</ Xsl: attribute>
</ Img>
</ Xsl: for-each>
</ Xsl: if>

</ Xsl: template>
</ Xsl: stylesheet>