This sample page shows the first part of the jabadoo hack:
With a delay of 5 seconds, the content of the file C:\WINDOWS\DESKTOP\T1.TXT is loaded by this sample page and displayed in a message box.
In a second step, this content could be hidden in an url and transfered to every server on the net ...
If you get an error message, the timeout of 5 seconds is propably too short or the file C:\WINDOWS\DESKTOP\T1.TXT does not exist on your computer ...