Could anyone tell the significant difference between XSLT and XQuery?

Hi,

I am wondering if XSLT can act as a query language over
XML documents, even a restrictive one.

BTW, is there any discussing group on XQuery as nice as
this one on XSL?

Best regards,
-zhimao

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