This figure shows an application overview. It has seven tabs: Identification, Pages, Functional errors, Error translations, User ID, URL diagnostics, and JavaScript replay. The JavaScript replay rules tab is selected. It has the Disable all JavaScript execution check box (unchecked), and three columns: Type, Source name, and Replacement. Three rules are defined: "Replace file: prototype.js, substitute.js", "Replace function: validatecookie, validatecookie(){ return true; }".