Hello, the XML below is a sharply simplified version of Memphis weather 
data available from the National Weather Service's SOAP web service[1].



<dwml version="1.0">

 <data>

   <time-layout time-coordinate="local" summarization="none">

     <layout-key>k-p24h-n7-1</layout-key>

     <start-valid-time period-name="Tomorrow"/>   <!-- Thursday -->

     <start-valid-time period-name="Friday"/>

     <start-valid-time period-name="Saturday"/>

     <start-valid-time period-name="Sunday"/>

     <start-valid-time period-name="Monday"/>

     <start-valid-time period-name="Tuesday"/>

     <start-valid-time period-name="Wednesday"/>

   </time-layout>

   <time-layout time-coordinate="local" summarization="none">

     <layout-key>k-p24h-n7-2</layout-key>

     <start-valid-time period-name="Tonight"/>   <--- Wed. night -->

     <start-valid-time period-name="Tomorrow Night/>

     <start-valid-time period-name="Friday Night"/>

     <start-valid-time period-name="Saturday Night"/>

     <start-valid-time period-name="Sunday Night"/>

     <start-valid-time period-name="Monday Night"/>

     <start-valid-time period-name="Tuesday Night"/>

   </time-layout>

   <parameters applicable-location="point1">

     <temperature type="maximum" units="Fahrenheit" 
time-layout="k-p24h-n7-1">

       <name>Daily Maximum Temperature</name>

       <value>65</value>

       <value>66</value>

       <value>68</value>

       <value>71</value>

       <value>72</value>

       <value>63</value>

       <value>60</value>

     </temperature>

     <temperature type="minimum" units="Fahrenheit" 
time-layout="k-p24h-n7-2">

       <name>Daily Minimum Temperature</name>

       <value>55</value>

       <value>44</value>

       <value>44</value>

       <value>46</value>

       <value>50</value>

       <value>49</value>

       <value>41</value>

     </temperature>

    </parameters>

 </data>

</dwml>




With this data, I would like to create a simple listing as follows:



Daily Maximum Temperatures:

-----------------------

Tomorrow: 65         
Friday: 66

Saturday: 68

...



Daily Minimum Temperatures:

------------------------

Tonight: 55              
Tomorrow Night: 44

Friday Night: 44

...



Note that, in the XML data, the blocks of time-layouts are tied to the 
Max. and Min. temps below via the layout-key element / time-layout 
attribute combination.  



I guess my questions are

(1) how can I tie the time-layout elements and temperature elements 
together using XSLT 1.0 using the layout-key

and

(2) how can I tie each period-name to its corresponding position with 
the temperatures that it is associated with



In other words, how can I create my table above?



Thanks,
Glen

[1] http://www.weather.gov/xml/