HTML5Forms.js is a JavaScript polyfill that implements a subset of the HTML5 Forms module in all browsers. The script will only add support for the different parts of the module when there doesn't exist a native implementation. HTML5Forms supports the following HTML5 input types: * range * date * datetime * datetime-local * week * color It also supports: * form validation (via "required" and "pattern" attributes) * the autofocus attribute (i.e. focusing on a particular form element onload) * the placeholder attribute (i.e. descriptive text of what should be in a form field) * the output tag (solves equations of form elements) * CSS styling of form validation states (simulates :invalid and :valid in unsupported browsers like IE9 and lower) * CSS styling of form elements that are not included in the CSS3 UI specification, but I think are useful for developers: - .wf2_isBlank, .wf2_notBlank – these classes are applied to form field when a form element is blank/not blank repectively. - .wf2_lostFocus -this class is applied to a form element when a form field loses focus. - .wf2_submitAttempted – this class is applied to a