Chosen is a javsacript plug-in makes long, unwieldy select boxes much more user-friendly. It is currently available in both jQuery and Prototype flavors.
The following message appears in the log files:
Could not create an instance of the counter 'XXX' (category: 'YYY')
Exception: System.UnauthorizedAccessException
Message: Access to the registry key 'Global' is denied.
Resolution:
A Sitecore application pool user has to be a member of the system "Performance Monitor Users" group to have access to the mentioned registry key. Adding the user to this group and restarting IIS should solve the problem.
Creating custom dropdowns is usually a tedious process that requires a ton of extra setup time. Oftentimes lacking conveniences that native dropdowns have such as keyboard navigation. DropKick removes the tedium and lets you focus on making s@#t look good.
Tooltip plugin: A grumble can be rotated around a given element at any angle, all 360 degrees. Any distance can be specified. Any CSS style can be applied. There's auto-magic size adjustment for use with localised text. FX queues for animating multiple grumbles. And it works in IE6+, and modern browsers.
"tablesorter is a jQuery plugin for turning a standard HTML table with THEAD and TBODY tags into a sortable table without page refreshes. tablesorter can successfully parse and sort many types of data including linked data in a cell."
VisualSearch.js enhances ordinary search boxes with the ability to autocomplete faceted search queries. Specify the facets for completion, along with the completable values for any facet. You can retrieve the search query as a structured object, so you don't have to parse the query string yourself.