create collapsible/expandable hierarchy

Does anyone have some code to share that will convert xml to a functioning
treeview, like IE5 does by default when you load and xml file?
 
Will it work with Netscape too?
 
BTW, where is the stylesheet that IE5 uses to do this?
 
Thanks


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