Bit of XML help needed

first of if anybody can point me in the direction of an already done example or tutorial in as3 for this then let me know.

ok basically i have a few buttons and when each is clicked a different section of my xml code is accessed. at the moment i am just using 2 different options until i expand it andmy xml code is:

<?xml version="1.0" ?>
<menu>
  <building campusbuilding= "The Library">
   <weekday><![CDATA[<b>Normal Opening Times</b>]]>
    <OT>Opening Time: 09:00am</OT>
    <CT>Closing Time: 12:00am</CT></weekday>
   <weekend><![CDATA[<b>Weekend Opening Times</b>]]>
    <OT>Opening Time: 12:00pm</OT>
    <CT>Closing Time: 10:00pm</CT></weekend>
   <furtherInfo>
    <contact>Contact: blah</contact>
    <website>Wesbsite: blah</website>
    <other>Other: Opening and Closing times extend during the exam periods</other></furtherInfo>
  </building>
  <building campusbuilding= "The Senate">
   <weekday><![CDATA[<b>Normal Opening Times</b>]]>
    <OT>Opening Time: 09:00am</OT>
    <CT>Closing Time: 12:00am</CT></weekday>
   <weekend><![CDATA[<b>Weekend Opening Times</b>]]>
    <OT>Opening Time: 12:00pm</OT>
    <CT>Closing Time: 10:00pm</CT></weekend>
   <furtherInfo>
    <contact>Contact: blah</contact>
    <website>Wesbsite: blah</website>
    <other>Other: Opening and Closing times extend during the exam periods</other></furtherInfo>
  </building>
</menu>

for my AS3 code, i’m coming up a bit stumped, i no about loading the URLLoader for it, but its the accessing of nodes and childs that im a bit stumped on. i presume it would be using eventListener on MOUSE.CLICK’s to then access the information i require.
can anybody give me any advice to get me on my way?
Thanks
Dan Hodkinson