If you’ve put off the task of upgrading your old code to Prototype 1.6, now you’re out of excuses. Core team member Tobie Langel has developed a script that will warn you of any deprecations or API changes. The script is meant to be used with Firebug, so it’s Firefox-only — but when you’re done, your code will be ready for use alongside Prototype 1.6 in all browsers. Using the script is easy. To m