[xsl] XSL and substring filter ?

[Jitu <jibhatia at andiamo dot com>]

<row>
<fruit>apple, orange</fruit>
<vegetable>potato, chillies</vegetable>
<drink>cola , orange juice </drink>
</row>

<row>
<fruit>grapes</fruit>
<vegetable>nothing</vegetable>
<drink>lemon juice</drink>
</row>

...
I want to pick up all the child elements of row which has a certain 
string appearing as part of its text.

For example if my search is based on 'orange', following should be 
returned :

<fruit>apple, orange</fruit>
<drink>cola , orange juice </drink>

Basically how do i filter this way (a substring kind of filter) . I want 
to use xsl-foreach and apply this filter simultaneously.

Code would be of great help !
Jitu


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