RE: Problem for : increment a variable in a for-each?

Hi Michael:
   Thans for help. In actually I found It is good for
me to use the xpath to find the logical chilld node to
format them. 


But I have last probelm:
How can I get the current node position on the special
list?

Example:
<Subject_List>
    <Subject_ID>
    <Subject_Title>
    <Subject_Parent_ID>
</Subject_List>
There have three type of node


Type A; (Logical parent node)
  Subject_Parent_ID =1

Type B: (Logical child node and its logical parent
node exist)

Type C: (Logical child node and its logical parent
node do not exist)
Subject_Parent_ID not eauql 1 but the logical parent
node  exist 

my question:
If the current node is belong to type A or type B. How
I know It is position for typeA and typeB list.


my XSL file:
<xsl:template match="SubjectLists">
           <xsl:apply-templates />
         </xsl:template>		
       <xsl:template match="Subject_List" >
       <xsl:choose>
			<xsl:when test="Subject_Parent_ID=1">
				                    <xsl:choose>
											<xsl:when
test="not(preceding-sibling::Subject_List)">
		                                        
<b><xsl:value-of select="Subject_Title"/></b>
											</xsl:when>
											<xsl:when
test="not(following-sibling::Subject_List)">
											       <b> ;<xsl:value-of
select="Subject_Title"/></b>
											</xsl:when>
											<xsl:otherwise>
												   <b> and  <xsl:value-of
select="Subject_Title"/></b>
											</xsl:otherwise>
                                 </xsl:choose>  
                                   <xsl:call-template
name="findChildNode">
										   <xsl:with-param name="ParentID"
select="Subject_ID"/>
                                  </xsl:call-template>

                     </xsl:when> 
                     <xsl:otherwise>
                          <xsl:call-template
name="findParentNode">
                                  <xsl:with-param
name="ID" select="Subject_Parent_ID"/>
                          </xsl:call-template> 
                    </xsl:otherwise>  
            </xsl:choose>                   
	</xsl:template> 
	<xsl:template name="findChildNode">
	       <xsl:param name="ParentID"/>
	           <xsl:for-each
select="../Subject_List[Subject_Parent_ID=$ParentID]">
                     <xsl:choose>
                              <xsl:when
test="position()=1 and last() &gt;2 ">
							         <b> ( <xsl:value-of
select="Subject_Title"/></b>
			                  </xsl:when>
			                      <!--only one-->
							 <xsl:when test="position()=1 and last()=1">
							         <b> ( <xsl:value-of
select="Subject_Title"/> )</b>
			                  </xsl:when>
			                  <!--only two-->
			                  <xsl:when test="position()=1 and 
last()=2 ">
							         <b> ( <xsl:value-of
select="Subject_Title"/> </b>
			                  </xsl:when>
			                  <xsl:when test="position()!=1 and
position()=last()">
                                           <b> and
<xsl:value-of select="Subject_Title"/> )</b>          
    
			                  </xsl:when>
			                   <xsl:otherwise>
			                         <b> ; <xsl:value-of
select="Subject_Title"/></b>           
			                  </xsl:otherwise> 
					</xsl:choose> 	       
	        </xsl:for-each>
	</xsl:template>
	<xsl:template name="findParentNode" >
	       <xsl:param name="ID"/>
	      		 <xsl:if 
test="count(../Subject_List[Subject_ID=$ID]) = 0">
	      		      <xsl:choose>
								<xsl:when
test="not(preceding-sibling::Subject_List)">
		                                        
<b><xsl:value-of select="Subject_Title"/></b>
								</xsl:when>
								<xsl:when
test="not(following-sibling::Subject_List)">
											       <b> ;<xsl:value-of
select="Subject_Title"/></b>
								</xsl:when>
								<xsl:otherwise>
												   <b> and  <xsl:value-of
select="Subject_Title"/></b>
				    			</xsl:otherwise>
				     </xsl:choose>  			
			      </xsl:if>    
	 </xsl:template>   
XML file:
 <root>
<SubjectLists>
   <Subject_List>
  		<Subject_ID>31</Subject_ID> 
  		<Subject_Title>Biology</Subject_Title> 
  		<Subject_Parent_ID>30</Subject_Parent_ID> 
</Subject_List>
  <Subject_List>
  		<Subject_ID>32</Subject_ID> 
<Subject_Title>Chemistry</Subject_Title> 
<Subject_Parent_ID>30</Subject_Parent_ID> 
 </Subject_List>
   <Subject_List>
  		<Subject_ID>24</Subject_ID> 
<Subject_Title>Legal Studies</Subject_Title> 
<Subject_Parent_ID>1</Subject_Parent_ID> 
  </Subject_List>
 <Subject_List>
  		<Subject_ID>17</Subject_ID> 
<Subject_Title>Music</Subject_Title> 
<Subject_Parent_ID>14</Subject_Parent_ID> 
  </Subject_List>
     <Subject_List>
  		<Subject_ID>30</Subject_ID> 
  		<Subject_Title>Science</Subject_Title> 
  		<Subject_Parent_ID>1</Subject_Parent_ID> 
  </Subject_List>
    <Subject_List>
  <Subject_ID>18</Subject_ID> 
  <Subject_Title>Visual Arts</Subject_Title> 
  		  <Subject_Parent_ID>14</Subject_Parent_ID> 
 </Subject_List>
  </SubjectLists>
</root>



Now the result is:

and Legal Studies and Music and Science ( Biology and
Chemistry ) ;Visual Arts 


the correct result should be:

Legal Studies ; Music ; Science ( Biology and
Chemistry ) and Visual Arts 


Thanks
Helena
 

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