Fixed issue - buttons do not light up after a selection is made

This issue was seen in the Provisioning dialog page where despite a template selection, the Continue button would not light up.

Recent prototype -> jQuery changes exposed this issue (which is an issue for jQuery, but not for prototype) where if there are multiple elements in a html page with the same id , for e.g. -
```
<span id='buttons_on'>
<div id='buttons_on'>
```
then a jQuery call - ```$j('#buttons_on')``` would pick only the first element, thus introducing a bug where the second element with the same id would not be handled at all.

On the Provisioning dialog page, the ```quick_search``` bar had its own set of buttons that were causing the above issue with the Provisioning dialog buttons. The quick_search bar buttons have now been renamed to
```quick_search_buttons_on/off``` to avoid the id clash.