Slider demos need options reset before loading next demo

If you head to the Slider demo and click the "Multiple sliders" example, any sliders you load after that one become vertical.

Steps to reproduce:

1. Load Slider demo

2. Click any of the first few examples and note they're horizontal

3. Click the "Multiple sliders" example

4. Click any of the other examples and notice how they're now vertical

Tested in Firefox 3.5.7 and Chrome (Windows).

See forum: http://forum.jquery.com/topic/issue-with-slider-demo