Script Summary: Unmasks password fields when clicking on/in them.
9/9/09 - Removed code that focus'ed the input as this caused issues.
6/11/09 - Cleanup and changed menu prompts
12/25/08 - Fix for broken testing for inserted inputs
12/21/08 - Changed to a case-insensitive match against input field "type"
Will match against type="password", type="PASSWORD", etc.
- Added menu option to switch between click / dblclick
This insta-applies on current page
12/12/08 - Updated to handle password fields inserted after the page initially loads.