[xsl] Help needed to transform in data joining

["Kota, Ganesh" <gkota@xxxxxxxx>]

Hi,
I have this XML file , need to do union of all Address and SBSaddress_
elements based on id attribute join condition in XSL file .Address
element has to be overridden in the output if SBSaddress has the data.
I appreciate if anybody can help and give some references on this.
Thanks,
Kota

Input XML file:

<root>
<A>
<B>
<ADDRESSES>
<ADDRESS
id='1'><State>CO</State><Address1/><Address2/><City>flroen</City><Countr
y>UnitedStates</Country><Province>--Select--</Province><ZipCode>11</ZipC
ode><County/></ADDRESS>
<ADDRESS
id='2'><State>KY</State><Address1>campbellcounty</Address1><Address2/><C
ity>fortthomas</City><Country>UnitedStates</Country><Province>--Select--
</Province><ZipCode>41075</ZipCode><County/></ADDRESS>
</ADDRESSES>
</B>
</A>
<c>
<addresslists>
<SBSaddress_
id='1'><State>CO</State><Address1>florence</Address1><Address2/><City>fl
roen</City><Country>UnitedStates</Country><Province>--Select--</Province
><ZipCode>11</ZipCode><County/></SBSaddress_>
<SBSaddress_
id='2'><State></State><Address1></Address1><Address2>bananacounty</<Addr
ess2><City>fortthomas</City><Country>UnitedStates</Country><Province>--S
elect--</Province><ZipCode>11</ZipCode><County/></SBSaddress_>
</addresslists>
</c>
</root>

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