jQuery Thead - Visible table headers
The jQuery Thead plugin simplifies the navigation in tables that have lots of rows and require scrolling. It enforces the visibility of the table header and ensures that the column names are always accessible for the user.
License
The jQuery Thead plugin is currently available for use in all personal or commercial projects under both MIT and GPL licenses. This means that you can choose the license that best suits your project, and use it accordingly.
Source
The latest and greatest development version of the plugin can be found at github.com/asual/jquery-thead.