<?xml version="1.0" encoding="UTF-8"?>
<!-- (c) XBRL International.  See www.xbrl.org/legal  
 
This version is non-normative - it should be identical to the normative
version that is contained in Appendix A of the specification RECOMMENDATION
with errata corrections to 2006-12-18 except for this comment.

Following the schema maintenance policy of XBRL International, this version's 
location on the web will be as follows:

1) While it is the most current RECOMMENDED version of the schema and until it is 
superseded by any additional errata corrections it will reside on the web at

http://www.xbrl.org/2003/xlink-2003-12-31.xsd 

2) It will be archived in perpetuity at 

http://www.xbrl.org/2003/2006-12-18/xlink-2003-12-31.xsd

-->
<schema targetNamespace="http://www.w3.org/1999/xlink" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="qualified">
  
  <annotation>
    <documentation>
    XLink attribute specification
    </documentation>
  </annotation>
  
   
  <attribute name="type">
    <simpleType>
	    <annotation>
	      <documentation>
	    Enumeration of values for the type attribute
	    </documentation>
	    </annotation>
	    <restriction base="string">
	      <enumeration value="simple"/>
	      <enumeration value="extended"/>
	      <enumeration value="locator"/>
	      <enumeration value="arc"/>
	      <enumeration value="resource"/>
	      <enumeration value="title"/>
	    </restriction>
	  </simpleType>
  </attribute>
  
  <attribute name="role">
    <simpleType>
	    <annotation>
	      <documentation>
	      A URI with a minimum length of 1 character.
	      </documentation>
	    </annotation>
	    <restriction base="anyURI">
	      <minLength value="1"/>
	    </restriction>
  </simpleType>
  </attribute>

  <attribute name="arcrole">
      <simpleType>
	    <annotation>
	      <documentation>
	      A URI with a minimum length of 1 character.
	      </documentation>
	    </annotation>
	    <restriction base="anyURI">
	      <minLength value="1"/>
	    </restriction>
  </simpleType>
  </attribute>

  <attribute name="title" type="string"/>
  
  <attribute name="show">
    <simpleType>
	    <annotation>
	      <documentation>
	      Enumeration of values for the show attribute
	      </documentation>
	    </annotation>
	    <restriction base="string">
	      <enumeration value="new"/>
	      <enumeration value="replace"/>
	      <enumeration value="embed"/>
	      <enumeration value="other"/>
	      <enumeration value="none"/>
	    </restriction>
	  </simpleType>
	</attribute>

  <attribute name="actuate">
    <simpleType>
    <annotation>
      <documentation>
      Enumeration of values for the actuate attribute
      </documentation>
    </annotation>
    <restriction base="string">
      <enumeration value="onLoad"/>
      <enumeration value="onRequest"/>
      <enumeration value="other"/>
      <enumeration value="none"/>
    </restriction>
  </simpleType>
	</attribute>
	
  <attribute name="label" type="NCName"/>
  
  <attribute name="from" type="NCName"/>
  
  <attribute name="to" type="NCName"/>
  
  <attribute name="href" type="anyURI"/>
  
</schema>