include an external javascript file on birt report client-side

1) Modify the BIRT viewer (either open source viewer or the iPortal) to include your client-side .js files. This can be done by changing one of the JSP files to include the .js file

2) In the report design, drag and drop a “text” report item at the top of your report design. Change the format type to “HTML”. Any html code you put in there, will output to the screen when the report runs. You can put html controls, javascript functions and other things just like a normal web page.

 

http://www.lebirtexpert.com/wordpress/2010/08/03/javascript-functions-lib/

Birt category axis

The base axis (horizontal axis ) can be category axis or value axis. The category axis just contains a sequence of labels (text values), while the value axis contains numeric or datetime values.