Mootools 1.4.4, HTML, CSS, JavaScript
jQuery 1.7.1, HTML, CSS, JavaScript
An answer to http://stackoverflow.com/questions/9191393/css-sprites-limitation
jQuery (edge), HTML, CSS, JavaScript
Mootools 1.4.3 (compat), HTML, CSS, JavaScript
Will change later to be accessible with radio buttons and such, but for this, it's just playing to see where it can get. All promising.