Moving an element to a different grouping based on a

INPUT XML
---------------
<station_list>
	<snets>
		<snet id="AZ">AZ (UC San Diego)</snet>
		<snet id="BK">BK (UC Berkeley)</snet>
		<snet id="CI">CI (CalTech)</snet>
		<snet id="IU">IU GSN</snet>
		<snet id="NN">NN (UN Reno)</snet>
		<snet id="TA">TA (USArray)</snet>
		<snet id="US">US ANSS</snet>
		<snet id="UU">UUSS (Uni. Utah)</snet>
	</snets>
	<stations>
 		<station name="MONP">
			<Network>AZ</Network>
 		</station>
		<station name="BDM">
			<Network>BK</Network>
		</station>
		<station name="FARB">
			<Network>BK</Network>
		</station>
 		<station name="109C">
			<Network>TA</Network>
 		</station>
		<station name="A05A">
			<Network>TA</Network>
 		</station>
		<station name="Z14A">
			<Network>TA</Network>
 		</station>
		<station name="US">
			<Network>MSTX</Network>
 		</station>

	</stations>
</station_list>

		<Folder id="AZ">
			<name>AZ (UC San Diego)</name>
			<Placemark>
				<name>MONP</name>
			</Placemark>
		</Folder>

		<Folder id="BK">
			<name>BK (UC Berkeley)</name>
			<Placemark>
				<name>BDM</name>
			</Placemark>
			<Placemark>
				<name>FARB</name>
			</Placemark>
		</Folder>
	
		<Folder id="TA">
			<name>TA (USArray)</name>
			<Placemark>
				<name>109C</name>
			</Placemark>
		</Folder>

		<Folder id="US">
			<name>ANSS</name>
			<Placemark>
				<name>MSTX</name>
			</Placemark>
		</Folder>

XSL
----
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
	xmlns="http://earth.google.com/kml/2.1"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
	xmlns:xs="http://www.w3.org/2001/XMLSchema">

	<xsl:template match="/">
	<kml>
		<Document>
			<xsl:for-each select="station_list/snets/snet">
				<Folder id="{@id}">
					<name><xsl:value-of select="." /></name>
				</Folder>

			</xsl:for-each>
		</Document>
	</kml>
	</xsl:template>

	<xsl:template match="station_list/stations/station/">
	<Placemark>
		<name><xsl:value-of select="@name" /></name>
	</Placemark>
	</xsl:template>

Thanks in advance,
- Rob