Finding a Parent Node after Xpath Search

[avikchatterjee]

Hi, 

How do I get the parent node, using XpathQueryService.

My Sample Xml is : 

<organization>
        <title>Biology</title>
        <item identifier="S0" identifierref="R1">
                <title>Bio1</title>             
        </item>
        <item identifier="S1" identifierref="R2">
                <title>Bio2</title>
                <item identifier="S2" identifierref="R3">
                        <title>Bio3</title>                     
                </item>
        </item>
</organization>

I want to search title node string "Bio1" by Xpath and after searching it I 
want the corresponding "identifierref" of the parent node of title. 

How do I get it....

Avik Chatterjee