Pass dynamic file URL in document in XSLT ~ gniithelp

XSLT - How to pass dynamic file URL in document.

<xsl:for-each select="document($fileUrl)/SXXXXX/*/Field">

1) Use Parameter name instead of variable will resolve the issue

2) Pass Absolute path to a variable
    <xsl:variable name="fileLocation" select="'C:/XXX/'"/>

3) Pass Relative Path to a variable
     <xsl:variable name="fileUrl">../staging/<xsl:value-of  select="$producttype"/>.xml</xsl:variable>