Neat but a bit of software that allows Firefox to respond in any number of unpredictable ways depending on whatever bit of script language might have been inadvertently installed on your PC sounds like a gaping security hole to me. Personally I'd use a site like: http://www.postmodern.com/~mcb/misc/code.html where you can just type in the code and click a button to get the airport or type in the the airport to get the code. Its a lot safer!