[xsl] Creating unique groups

[Dave Roe <david_roe@xxxxxxx>]

I have this XML representing 2 groups (spread across 4 group elements):

<root>

	<group name="group1">
		<entry name="entry1" />
		<entry name="entry2" />
	</group>

	<group name="group1">
		<entry name="entry3" />
	</group>

	<group name="group2">
		<entry name="entry4" />
		<entry name="entry5" />
	</group>

	<group name="group2">
		<entry name="entry6" />
	</group>

</root>

What would be the best approach to turn it into the following output, 
where the name of the group is used as the identifier of what should be 
a unique group element?

<root>

	<group name="group1">
		<entry name="entry1" />
		<entry name="entry2" />
		<entry name="entry3" />
	</group>

	<group name="group2">
		<entry name="entry4" />
		<entry name="entry5" />
		<entry name="entry6" />
	</group>

</root>

Right now, I just need someone to point me in the right direction to 
get me started.

Thanks,
/dave