You don't explain your structure clearly, but you could try:

<xsl:for-each select="room[starts-with(., '6.')]">

Mike Kay

> 
> For example, 6.E.19 would be on the 6th floor, in E section's 
> 19th room. For example, say I wanted a list of 
> all the rooms on the 6th floor, how would I calculate that?
> 


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