This jQuery plug-in enforces the autocomplete=off HTML attribute on password (and other) fields. Recent browsers have chosen to ignore this attribute in favor of user preferences. However, some financial (and other) institutions may have good reasons to enforce this practice.
Using $.cache (or $.domCache) may dramatically increase the performance of your web application by eliminating unnecessary DOM traversal. Manipulate the DOM (with event handling) more efficiently by referencing cached DOM elements.