jQuery 1.8.3, HTML, CSS, JavaScript
Mootools 1.4.5, HTML, CSS, JavaScript
jQuery 1.4.4, HTML, CSS, JavaScript
When you select item 2 of group X, item 2 is selected in every group that contains that same element.
jQuery 1.7.2, HTML, CSS, JavaScript
Using "call" method to overwrite what "this" equals inside of an externally invoked function, called using jQuery animate...
Mootools 1.3 (compat), HTML, CSS, JavaScript