Note jQuery is not needed at all for the actual counting
jQuery 1.10.1, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
jQuery (edge), HTML, CSS, JavaScript
jQuery 2.0.2, HTML, CSS, JavaScript
jQuery 1.9.1, HTML, CSS, JavaScript
Mootools 1.4.5, HTML, CSS, JavaScript
jQuery 1.4.4, HTML, CSS, JavaScript