Worksheet clickable

gistfile1.txt

 @Listen("onClick = button[label='Update Balance']")
    public void updateBalance(){
        log.debug("Updating Balance.")
        Integer fromDay = Integer.parseInt(param.get("fromDay")[0])
        Integer fromMonth = Integer.parseInt(param.get("fromMonth")[0])
        Integer toDay = Integer.parseInt(param.get("toDay")[0])
        Integer toMonth = Integer.parseInt(param.get("toMonth")[0])
…...
…...
// Call your service method here...
}