variable indirection

Hi,

Here's what I want to do :
In a template I've got a variable which value is a string, this string is also 
the name of a variable and I want to access it
For example : 
$var1="var2" and I want to get $var2...
Is that possible with xsl?

In my particulary case, the name of the second variable is also the name of an 
http post parameter, does it makes possible to access it?
I tried with : javascript:getParameter(<xsl:value-of select="$var1") but 
nothing seems possible like this.

Thank you for any information about that.

Karim

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list