diff --git a/xml2xslt.xsl b/xml2xslt.xsl
index 6b84b46..ff96ad3 100755
--- a/xml2xslt.xsl
+++ b/xml2xslt.xsl
@@ -31,6 +31,9 @@
 		
 		<xsl-out:stylesheet version="1.0">
 		
+		<xsl-out:param name="department">INFO</xsl-out:param>
+		<xsl-out:param name="paper"/>
+
 		<!-- root-level documents should say what type/class of document they are (lecture, tutorial, generic, ...).  Do we want to call this a class or a type? -->
 		<!--
 		<xsl:variable name="doctype"><xsl:value-of select="/document/@type"/></xsl:variable>
@@ -106,9 +109,10 @@
 \usepackage[margin=1in]{geometry}
 \usepackage{mathpple}
 \usepackage{graphicx}
+<xsl-out:apply-templates select="document('environment.xml')/environment/latex-packages"/>
 \usepackage[pdftex]{hyperref}
 
-\input{commands}
+<xsl-out:apply-templates select="document('environment.xml')/environment/latex-commands"/>
 
 <xsl-out:apply-templates select="title" mode="preamble"/>
 <xsl-out:apply-templates select="author" mode="preamble"/>