xsl question

Hey all,

I have a xml document which looks something like this :

<?xml version="1.0" encoding="UTF-8"?>
<dmx>

<dmxpsub min="0000000001">
<SubscriberNumber>100000000011113FFF</SubscriberNumber>
<ForwardSubscriberNumber>311110000000001FFF</ForwardSubscriberNumber>
<DialingPlanID>0</DialingPlanID>
<Password>0000</Password>
<actual_phone>YES</actual_phone>
<esn>0</esn>
<dmxpsscfb>
<ActivationStatus>OPERATIVE</ActivationStatus>
<provision_status>EXPLICIT</provision_status>
<world_number>0123456789012345</world_number>
</dmxpsscfb>
<dmxpssmct>
<ActivationStatus>OPERATIVE</ActivationStatus>
<provision_status>EXPLICIT</provision_status>
<mct_option>0</mct_option>
</dmxpssmct>
<dmxpssmrsum>
<ActivationStatus>OPERATIVE</ActivationStatus>
<provision_status>EXPLICIT</provision_status>
<pilot_min>100000000011113FFF</pilot_min>
</dmxpssmrsum>
</dmxpsub>
:
:
</dmx>

Now I want to display this information in the form of a table.  I can do

this using a simple stylesheet with <xsl:value-of> and other elements.

The problem I am facing is I am generating this xml document
dynamically, so some of the tags from the document might be missing(
they are optional)
<tr style="text-align:left;position:relative;background-color:pink">
  <td style="background-color:lightgreen"><xsl:value-of
select="@min"/></td>
         <td align="center"><xsl:value-of
select="SubscriberNumber"/></td>
         <td align="center"><xsl:value-of
select="ForwardSubscriberNumber"/></td>
  <td align="center"><xsl:value-of select="DialingPlanID"/></td>
  <td align="center"><xsl:value-of select="Password"/></td>
  <td align="center"><xsl:value-of select="actual_phone"/></td>
        </tr>

If I use somethinf like this and if the password tag is not included in
the document, then the password coloumn in the table is left blank.  Can

someone suggest me, how to check if a tag is present in the document.
please consider that there is more data in the document, so I can not
have a <xsl:if> statement to check if each tag is persent or not ..
If any doubts about my question pls mail me :

Thanks
alankar





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