TimeStamp as date format in XSL

[Andrea Schwob]

Hi
Is there a possiblity to change the timestamp, generated  by the Aggregate log 
file from milliseconds to a standard date format? I am using the 
"jmeter-results-detail-report.xsl" file to generate the HTML "Load Tests 
Result" page and I would like to display also the timestamp as date.
 
I would appreciate any help.
Thanks
Andrea