how to get the value of particular node using xmldocument

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VB

Hi
I tried getting the value of a single node from xmldocument but it is not getting loaded i can see the innerxml but i cannot get the particular node and I need jsessionid from this response how to do it

<?xml version="1.0" encoding="UTF-8"?>
<login-response
  xsi:schemaLocation="http://xml-schemas.bcbsil.com/b2b/b2b.xsd b2b/b2b.xsd"
  xmlns="http://xml-schemas.bcbsil.com/b2b/b2b.xsd"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <response-header
    status="OK" audit-id="LOGIN"/>
    <login-data session-token=";jsessionid=0000nVG0vvqKqLQwaYLuNRJnnku:12vbdkshu"/>
</login-response>

I need the jsessionId from this xml pl help me