Actually, I think it would be handy if you tell us what data you wish to extract. Is it only the numeric parameter of openInvoice?
in reply to Regular Expression: I need a regex to fetch data from an html file
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James
My blog: Imperial Deltronics