diff --git a/build/find_OpenAthens_entities_not_in_Eduserv_metadata.xq b/build/find_OpenAthens_entities_not_in_Eduserv_metadata.xq
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+++ b/build/find_OpenAthens_entities_not_in_Eduserv_metadata.xq
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+xquery version "1.0";
+declare default element namespace "urn:oasis:names:tc:SAML:2.0:metadata";
+(:This xquery script finds all Eduserv entities that appear in UK Federation metadata
+ :but not in the Eduserv metadata.
+ :It returns the UK Federation ID and the entityID
+ :
+ :To run this, you can use the xquery debug perspective in Eclipse, or in Oxygen.
+ :You could also download the free version of Saxon from http://saxon.sourceforge.net/
+ :and include saxon8.jar in your classpath and then run 
+ :
+ :java net.sf.saxon.query find_OpenAthens_entities_not_in_Eduserv_metadata.xq
+ :
+ :The output is an XML file listing the entityID's of Eduserv entities that appear in
+ :UK Federation metadata but not in the Eduserv metadata.
+ :
+ :Gary Gray
+ :13 July 2010
+ :)
+ <Entities>
+ {
+for $f in doc("http://metadata.ukfederation.org.uk/ukfederation-metadata.xml")/EntitiesDescriptor/EntityDescriptor[Organization/OrganizationName='Eduserv']
+where $f/@entityID[not(. = /doc("https://auth.athensams.net/saml/metadata?name=ukfederation")/EntitiesDescriptor/EntityDescriptor/@entityID)]
+return
+<Entity ID="{data($f/@ID)}">{data($f/@entityID)}
+</Entity>
+}
+</Entities>
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