Hi Keyur,
You can simulate a loop with recursion..
<xsl:call-template name="iterate">
<xsl:with-param name="x" select="50" />
</xsl:call-template>
<xsl:template name="iterate">
<xsl:param name="x"/>
<xsl:if test="$x > 0">
<tr/>
<xsl:call-template name="iterate">
<xsl:with-param name="x" select="$x - 1" />
</xsl:call-template>
</xsl:if>
</xsl:template>
Using xslt 2.0 you can use:
<xsl:for-each select="for $x in 1 to 50 return $x">
<xsl:value-of select="."/>
</xsl:for-each>
Using Saxon you can easily use this with your xslt 1.0 stylesheets
(unless you are worried about portability).
Cheers
andrew