Q:

Parsing XML in JSFL? 

It seems that there is no xml parsing tool in available JSFL (Adobe Flash-extension Javascript script file) : http://osflash.org/pipermail/flashextensibility_osflash.org/2006-July/000014.html
So, is there an easy and cross-platform way to add a javascript xml parser? 

A:

I know this is an old question, but I was looking for a solution to this problem as well (using Flash CS3).  I needed to parse XML from a data file on disk.  Combining the suggestion of George Profenza I was able to get it to work with using eval().  The key is to remove the first line (the xml declaration):
xmlData = eval( FLfile.read( xmlFile ).split( '\n' ).slice( 1 ).join( '\n' ) );

... and you're good to go!