<?xml version="1.0" encoding="UTF-8"?>
<!-- Copyright 2007 XBRL International. All Rights Reserved. 
 
This version is non-normative - it should be identical to the normative version that is contained in Appendix A of the relevant specification except for this comment.

Following the schema maintenance policy of XBRL International, it is the intent (but is not guaranteed) that the location of non-normative versions of these schemas on the web will be as follows:

1)	While any schema is the most current RECOMMENDED version and until it is superseded by any additional errata corrections a non-normative version will reside on the web in the directory http://www.xbrl.org/2008/ - during the drafting process for this specification this directory should contain a copy of the most recent published version of the schema at http://www.xbrl.org/2008/entity-filter.xsd.

2)	A non-normative version of each schema as corrected by any update to the RECOMMENDATION will be archived in perpetuity on the web in a directory that will contain a unique identification indicating the date of the update.

-->
<schema 
  targetNamespace="http://xbrl.org/2008/filter/entity"
  elementFormDefault="qualified"
  xmlns="http://www.w3.org/2001/XMLSchema" 
  xmlns:ef="http://xbrl.org/2008/filter/entity" 
  xmlns:variable="http://xbrl.org/2008/variable" 
>

  <import namespace="http://www.xbrl.org/2003/XLink" 
    schemaLocation="http://www.xbrl.org/2003/xl-2003-12-31.xsd"/>

  <import namespace="http://xbrl.org/2008/variable" 
    schemaLocation="variable.xsd"/>

  <element id="xml-entity-identifier-filter"
  name="identifier" substitutionGroup="variable:filter">
    <complexType mixed="true">
      <complexContent mixed="true">
        <extension base="variable:resource.type">
          <attribute name="test" 
          type="variable:expression" 
          use="required"/>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element id="xml-specific-entity-scheme-filter"
  name="specificScheme" substitutionGroup="variable:filter">
    <complexType mixed="true">
      <complexContent mixed="true">
        <extension base="variable:resource.type">
          <attribute name="scheme"
          type="variable:expression" 
          use="required"/>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element id="xml-regular-expression-entity-scheme-filter"
  name="regexpScheme" substitutionGroup="variable:filter">
    <complexType mixed="true">
      <complexContent mixed="true">
        <extension base="variable:resource.type">
          <attribute name="pattern" type="string" 
          use="required"/>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element id="xml-specific-entity-identifier-filter"
  name="specificIdentifier" substitutionGroup="variable:filter">
    <complexType mixed="true">
      <complexContent mixed="true">
        <extension base="variable:resource.type">
          <attribute name="scheme"
          type="variable:expression" 
          use="required"/>
          <attribute name="value" 
          type="variable:expression" 
          use="required"/>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element id="xml-regular-expression-entity-identifier-filter"
  name="regexpIdentifier" substitutionGroup="variable:filter">
    <complexType mixed="true">
      <complexContent mixed="true">
        <extension base="variable:resource.type">
          <attribute name="pattern" type="string" use="required"/>        
        </extension>
      </complexContent>
    </complexType>
  </element>

</schema>