Passing Parameters in XSLT

Hi
Can u please help me out?
Suppose i have 2 xml files and 2 different xslt files for those xml files.
Suppose i am showing the data using XSLT and retrieving the data from first.xml file.
Now On click of one link i want to pass one parameter to second xslt file then
How can i try it.
I have tried with using JavaScript but it is retrieving the parameter from url(by using location.search)
But how to pass it to XSLT file

Waiting for reply

I'm sorry, but I think it's not possible to pass it to XSLT file. Maybe the solution is in the xml File (add a tag, which contain the parameter interpreted in the second xsl file)?
@+