hallo list
--
these are my first steps in xsl-programming, but it is quite difficult... 

my problem:
i've got a xml like that (only a little part of it):

<root>
<CITYENTRY CITYNO="1">
	<CITYNAME>Aach, Hegau</CITYNAME>
	<CITYZIP>78267</CITYZIP>
	<CITYPRICE>7,50</CITYPRICE>
	<TYPE>3</TYPE>
	<ALLMEMBERNO>
		<MEMBERNO>72866-00</MEMBERNO>
	</ALLMEMBERNO>
</CITYENTRY>
<CITYENTRY CITYNO="2">
	<CITYNAME>Aachen</CITYNAME>
	<CITYZIP>52062</CITYZIP>
	<CITYPRICE>5,50</CITYPRICE>
	<TYPE>3</TYPE>
	<ALLMEMBERNO>
		<MEMBERNO>34-00</MEMBERNO>
		<MEMBERNO>43096-00</MEMBERNO>
	</ALLMEMBERNO>
</CITYENTRY>
<CITYENTRY CITYNO="32074">
	<CITYNAME>Aach-Linz = Pfullendorf , Baden 88630</CITYNAME>
	<CITYZIP>88630</CITYZIP>
	<CITYPRICE>5,50</CITYPRICE>
	<TYPE>2</TYPE>
	<ALLMEMBERNO>
		<MEMBERNO>34-00</MEMBERNO>
		<MEMBERNO>43096-00</MEMBERNO>
	</ALLMEMBERNO>
	</CITYENTRY>
<CITYENTRY CITYNO="3">
	<CITYNAME>Aachen</CITYNAME>
	<CITYZIP>52062</CITYZIP>
	<CITYPRICE>5,50</CITYPRICE>
	<TYPE>3</TYPE>
	<ALLMEMBERNO>
		<MEMBERNO>34-00</MEMBERNO>
		<MEMBERNO>43096-00</MEMBERNO>
	</ALLMEMBERNO>
</CITYENTRY>
<CITYENTRY CITYNO="4">
	<CITYNAME>Aachen</CITYNAME>
	<CITYZIP>52064</CITYZIP>
	<CITYPRICE>5,50</CITYPRICE>
	<TYPE>3</TYPE>
	<ALLMEMBERNO>
		<MEMBERNO>34-00</MEMBERNO>
		<MEMBERNO>43096-00</MEMBERNO>
	</ALLMEMBERNO>
</CITYENTRY>
<CITYENTRY CITYNO="5">
	<CITYNAME>Aachen</CITYNAME>
	<CITYZIP>52066</CITYZIP>
	<CITYPRICE>5,50</CITYPRICE>
	<TYPE>3</TYPE>
	<ALLMEMBERNO>
		<MEMBERNO>34-00</MEMBERNO>
		<MEMBERNO>43096-00</MEMBERNO>
	</ALLMEMBERNO>
</CITYENTRY>

</root>


-> when ever a CITYENTRY of TYPE = 3 is direct followed by an other CITYENTRY TYPE =  3 with exact the same CITYNAME and ALLMEMBERNO then i want to delete the actual CITYENTRY and put in the followed CITYENTRY the CITYZIP of the actual CITYENTRY in the tag CITYZIPEND.

my code works, exept the fact, that i can't fill CITYZIPEND.
have anyone an idea?

here is my code:


<?xml version='1.0' encoding='utf-8'?>
<xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>

<xsl:output method="xml" version='1.0' encoding='utf-8' indent='no'/>


	<!-- ............................................. -->
	<xsl:template match="@*|node()">
		<xsl:copy>
			<xsl:apply-templates select="@*|node()"/>
        </xsl:copy>
	</xsl:template>

	<!-- ............................................. -->

	<xsl:template match="/root">
	<root>


		<xsl:for-each select="CITYENTRY">

			<!-- prev ALLMEMBERNO -->
			<xsl:variable name="prevALLMEMBERNO">
				<xsl:value-of select="preceding-sibling::*[1]/ALLMEMBERNO"/>
			</xsl:variable>

			<!-- next ALLMEMBERNO -->
			<xsl:variable name="nextALLMEMBERNO">
				<xsl:value-of select="following-sibling::*[1]/ALLMEMBERNO"/>
			</xsl:variable>

			<!-- pref CITYNAME -->
			<xsl:variable name="prevCITYNAME">
				<xsl:value-of select="preceding-sibling::*[1]/CITYNAME"/>
			</xsl:variable>

			<!-- next CITYNAME -->
			<xsl:variable name="nextCITYNAME">
				<xsl:value-of select="following-sibling::*[1]/CITYNAME"/>
			</xsl:variable>

			<!-- pref TYPE -->
			<xsl:variable name="prevTYPE">
				<xsl:value-of select="preceding-sibling::*[1]/TYPE"/>
			</xsl:variable>

			<!-- next TYPE -->
			<xsl:variable name="nextTYPE">
				<xsl:value-of select="following-sibling::*[1]/TYPE"/>
			</xsl:variable>

		<xsl:choose>
			<!-- Normale Stadt -->

			<xsl:when test="TYPE = 3">
				<xsl:choose>


					<!-- ..................................................... -->
					<xsl:when test="$nextALLMEMBERNO = ALLMEMBERNO and
									$nextCITYNAME = CITYNAME and
									$nextTYPE = TYPE"
					>

					</xsl:when>

					<!-- ..................................................... -->

					<xsl:when test="$nextALLMEMBERNO = ALLMEMBERNO and
									$prevALLMEMBERNO = ALLMEMBERNO and
									$prevCITYNAME = CITYNAME and
									$nextCITYNAME = CITYNAME and
									$prevTYPE = TYPE and
									$nextTYPE = TYPE"
					>

					</xsl:when>

					<!-- ..................................................... -->
					<xsl:when test="$nextALLMEMBERNO != ALLMEMBERNO and
									$prevALLMEMBERNO = ALLMEMBERNO and
									$prevCITYNAME = CITYNAME and
									$nextCITYNAME != CITYNAME and
									$prevTYPE = TYPE and
									$nextTYPE != TYPE"
					>

    					<xsl:copy>
							<xsl:apply-templates select="@*|node()"/>
							<xsl:element name = "CITYZIPEND">99999</xsl:element>
						</xsl:copy>
					</xsl:when>

					<!-- ..................................................... -->
					<xsl:otherwise>
    					<xsl:copy>
							<xsl:apply-templates select="@*|node()"/>
						</xsl:copy>
					</xsl:otherwise>
					<!-- ..................................................... -->

				</xsl:choose>
			</xsl:when>


			<xsl:when test="TYPE = 1">
    			<xsl:copy>
				<xsl:apply-templates select="@*|node()"/>
				<xsl:element name = "Status">ausgeben</xsl:element>
				</xsl:copy>
			</xsl:when>

			<xsl:when test="TYPE = 2">
    			<xsl:copy>
				<xsl:apply-templates select="@*|node()"/>
				<xsl:element name = "Status">ausgeben</xsl:element>
				</xsl:copy>
			</xsl:when>

			<xsl:otherwise>

			</xsl:otherwise>
		</xsl:choose>

	</xsl:for-each>
</root>   
</xsl:template>




</xsl:stylesheet>

thanks for any clues.



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