I want into write xslt to get response for the input xml. thanks in advance. I want to group output such that month year combination is not repeated for each of the employee details.

Input XML:

<resultset>
    <row>
        <column>
            <name>Month</name>
            <value>2</value>
        </column>
        <column>
            <name>Year</name>
            <value>2010</value>
        </column>
        <column>
            <name>EmpName</name>
            <value>Anu</value>
        </column>
        <column>
            <name>Age</name>
            <value>24</value>
        </column>
    </row>
    <row>
        <column>
            <name>Month</name>
            <value>2</value>
        </column>
        <column>
            <name>Year</name>
            <value>2010</value>
        </column>
        <column>
            <name>EmpName</name>
            <value>Nancy</value>
        </column>
        <column>
            <name>Age</name>
            <value>26</value>
        </column>
    </row>
    <row>
        <column>
            <name>Month</name>
            <value>3</value>
        </column>
        <column>
            <name>Year</name>
            <value>2010</value>
        </column>
        <column>
            <name>EmpName</name>
            <value>Ned</value>
        </column>
        <column>
            <name>Age</name>
            <value>25</value>
        </column>
    </row>
</resultset>

Output expected:

<Response>
    <PeriodInfo>
        <Month>2</Month>
        <Year>2010</Year>
        <EmployeeDetails>
            <Name>Anu</Name>
            <Age>24</Age>
        </EmployeeDetails>
        <EmployeeDetails>
            <Name>Nancy</Name>
            <Age>26</Age>
        </EmployeeDetails>
    </PeriodInfo>
    <PeriodInfo>
        <Month>3</Month>
        <Year>2010</Year>
        <EmployeeDetails>
            <Name>Ned</Name>
            <Age>25</Age>
        </EmployeeDetails>
    </PeriodInfo>
</Response>