How to use xpath for variable in xslt?

[skodeh]

for example, I have a variable \[code\]$myVar\[/code\] which equal to:\[code\]<?xml version="1.0" encoding="UTF-8" standalone="no"?><ResultSet> <Row> <Cell name="NEXTVAL" type="NUMBER">475535</Cell> </Row> <Row> <Cell name="NEXTVAL" type="NUMBER">475536</Cell> </Row> <Row> <Cell name="NEXTVAL" type="NUMBER">475537</Cell> </Row></ResultSet>\[/code\]How I can use xpath for this variable in xslt?Like somehow get value in \[code\]/ResultSet/Row[1]/Cell\[/code\]