Changing date format using XSL

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:atom="http://www.w3.org/2005/Atom">
	<xsl:output method="html" indent="yes" encoding="iso-8859-1"/>
	<xsl:template match="atom:feed">
		<div>
			<xsl:apply-templates select="atom:entry[position() &lt;= 2]"/>
		</div>
	</xsl:template>
 
	<xsl:template match="atom:entry">
		<div style="font-size:10px">
			<xsl:call-template name="format_date">
				<xsl:with-param name="DateTime" select="substring-before(atom:updated,'T')"/>
				<xsl:with-param name="long" select="'1'"/>
			</xsl:call-template>
			<p>
				<xsl:value-of select="substring-before(atom:updated,'T')"/>
				<br/>
				<b>
					<a href="{atom:link/@href}">
						<xsl:value-of select="atom:title" disable-output-escaping="yes"/>
					</a>
				</b>
				<br/>
				<xsl:value-of select="atom:summary" disable-output-escaping="yes"/>
			</p>
			<!--                    <xsl:copy-of select="atom:content/*"/>-->
		</div>
	</xsl:template>
 
	<xsl:template name="format_date">
		<xsl:param name="DateTime"/>
		<xsl:param name="long"/>
		<xsl:variable name="year" select="substring-before($DateTime,'-')"/>
		<xsl:variable name="month" select="substring-before(substring-after($DateTime,'-'),'-')"/>
		<xsl:variable name="day" select="substring-after(substring-after($DateTime,'-'),'-')"/>
		<xsl:choose>
			<xsl:when test="$long='yes' or $long='1' or $long='true'">
				<!--Long Date format 'September 11, 2001'-->
				<xsl:choose>
					<xsl:when test="$month = '1' or $month = '01'">January</xsl:when>
					<xsl:when test="$month = '2' or $month = '02'">February</xsl:when>
					<xsl:when test="$month = '3' or $month = '03'">March</xsl:when>
					<xsl:when test="$month = '4' or $month = '04'">April</xsl:when>
					<xsl:when test="$month = '5' or $month = '05'">May</xsl:when>
					<xsl:when test="$month = '6' or $month = '06'">June</xsl:when>
					<xsl:when test="$month = '7' or $month = '07'">July</xsl:when>
					<xsl:when test="$month = '8' or $month = '08'">August</xsl:when>
					<xsl:when test="$month = '9' or $month = '09'">September</xsl:when>
					<xsl:when test="$month = '10'">October</xsl:when>
					<xsl:when test="$month = '11'">November</xsl:when>
					<xsl:when test="$month = '12'">December</xsl:when>
				</xsl:choose>
				<xsl:text>&#xA0;</xsl:text>
				<xsl:value-of select="$day"/>
				<xsl:text>, </xsl:text>
				<xsl:value-of select="$year"/>
			</xsl:when>
			<xsl:otherwise>
				<xsl:value-of select="$month"/>
				<xsl:text>/</xsl:text>
				<xsl:value-of select="$day"/>
				<xsl:text>/</xsl:text>
				<xsl:value-of select="$year"/>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>
</xsl:stylesheet>

                                              

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