Handling namespace issues while transforming xml - xslt

Question

I am able to transform the xml as per my requirement with the below xml as the input.
<message
xmlns="http://www.origoservices.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>
<m_control>
<control_timestamp>2013-06-06T14:55:37</control_timestamp>
<initiator_id>ASL</initiator_id>
</m_control>
<m_content>
<b_control>
<quote_type>Single Company</quote_type>
<quote_or_print>Quote And Print</quote_or_print>
<generic_quote_ind>Yes</generic_quote_ind>
<tpsdata>
<tps_quote_type>Comparison</tps_quote_type>
</tpsdata>
</b_control>
<application>
<product>
<tpsdata>
<service_type>QuickQuote</service_type>
<quote_type>Standard</quote_type>
</tpsdata>
</product>
</application>
</m_content>
</message>
But the problem is, sometimes the input XML will contain the refference to Namespace as a prefix to each element .As shown in the xml below the namespace prefix 'ns2' for each element.Below is the xml with 'ns2' namespace prefixes. In this case, my xslt fails and unable to perform the transformation. Could anyone please help me to understand how to handle this namespace issues in xslt, so that xml with and without namespace prefixes can be transformed by the same xslt?
<ns2:message xmlns:ns2="http://www.origoservices.com"
xmlns="http://www.w3.org/2000/09/xmldsig#"
>
<ns2:m_control>
<ns2:control_timestamp>2013-06-06T14:55:37</ns2:control_timestamp>
<ns2:initiator_id>ASL</ns2:initiator_id>
</ns2:m_control>
<ns2:m_content>
<ns2:b_control>
<ns2:quote_type>Single Company</ns2:quote_type>
<ns2:quote_or_print>Quote And Print</ns2:quote_or_print>
<ns2:generic_quote_ind>Yes</ns2:generic_quote_ind>
<ns2:quote_response_status>Error</ns2:quote_response_status>
<ns2:tpsdata>
<ns2:tps_quote_type
xmlns="http://www.origoservices.com"
xmlns:ns2="http://www.w3.org/2000/09/xmldsig#"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>Comparison</ns2:tps_quote_type>
</ns2:tpsdata>
</ns2:b_control>
<ns2:application>
<ns2:product>
<ns2:tpsdata>
<ns2:service_type>QuickQuote</ns2:service_type>
<ns2:quote_type>Standard</ns2:quote_type>
</ns2:tpsdata>
</ns2:product>
</ns2:application>
</ns2:m_content>
</ns2:message>
I am using below xslt.
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:o="http://www.origoservices.com"
xmlns:dp="http://www.datapower.com/extensions"
xmlns:fn="http://www.w3.org/2005/xpath-functions"
xmlns:date="http://exslt.org/dates-and-times"
extension-element-prefixes="dp"
exclude-result-prefixes="fn date">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="node() | #*">
<xsl:copy>
<xsl:apply-templates select="node() | #*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="o:b_control/o:quote_type[../o:tpsdata/o:tps_quote_type = 'Comparison']">
<xsl:copy>
<xsl:apply-templates select="#*" />
<xsl:text>Comparison</xsl:text>
</xsl:copy>
</xsl:template>
<xsl:template match="o:tpsdata[o:tps_quote_type = 'Comparison']" />
</xsl:stylesheet>
Let me know if more information is needed.
Regards,
Rahul

Answer 1

After all the discussion on this forum, my issue has been resolved. Below is the corrected xslt to handle the namespace issues that I was facing.
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:o="http://www.origoservices.com" xmlns:dp="http://www.datapower.com/extensions" xmlns:fn="http://www.w3.org/2005/xpath-functions" xmlns:date="http://exslt.org/dates-and-times" xmlns:g="http://www.w3.org/2000/09/xmldsig#" version="1.0" extension-element-prefixes="dp" exclude-result-prefixes="fn date">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="node() | #*">
<xsl:copy>
<xsl:apply-templates select="node() | #*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="o:b_control/o:quote_type[../o:tpsdata/g:tps_quote_type = 'Comparison']">
<xsl:copy>
<xsl:apply-templates select="#*"/>
<xsl:text>Comparison</xsl:text>
</xsl:copy>
</xsl:template>
<xsl:template match="o:tpsdata[g:tps_quote_type = 'Comparison']"/>
<xsl:template match="o:b_control/o:quote_type[../o:tpsdata/o:tps_quote_type = 'Comparison']">
<xsl:copy>
<xsl:apply-templates select="#*"/>
<xsl:text>Comparison</xsl:text>
</xsl:copy>
</xsl:template>
<xsl:template match="o:tpsdata[o:tps_quote_type = 'Comparison']"/>
</xsl:stylesheet>