jQuery 1.9.1, HTML, CSS, JavaScript
jQuery 1.7.1, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
jQuery 1.8.3, HTML, CSS, JavaScript
jQuery 1.7, HTML, CSS, JavaScript
jQuery 1.7.2, HTML, CSS, JavaScript
jQuery 1.5.2, HTML, CSS, JavaScript
Via Arturs
See: http://stackoverflow.com/questions/15243387/javascript-regex-to-disallow-all-special-characters
jQuery 1.10.1, HTML, CSS, JavaScript