0.09:
- Fix a bug on IE introduced in 0.08 that the lightbox is totally shallow
- Implement reentrant prevention to show multiple lightboxes and layers.

0.08:
- On Firefox, prevent the box been shown at the left side in the
  beginning, then re-centered latter.

- Customizable background color and opacity


0.07:
- Add more solid callback support. This version has incompatible
  API as before. Please udpate your program.

0.06:
- Fixed an issue of missing text cursor when the content
  has text input field.

0.04:
- Add a way to use current existing divs the lightbox

0.02:

- content() now support more then just HTML. You could pass a
  pre-created element, with many event listneres.

0.01:

- Very Easy API. With nice defaults.
- Lack of customization ability
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