Support certain HTML 5 attributes with javascript, but only if the browser doesn't already support them.
JavaScript CSS
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HTML5 Support

The aim of HTML5 is to seamlessly provide support an extremely lightweight plugin for a few commonly used html5 attributes for browsers that don't already support them.

HTML5 Support currently supports the placeholder attribute and the autofocus attribute. HTML5 Also supports type=“password” fields, by special casing them, and swapping elements.



<input type="text" autofocus />
<input type="text" placeholder="Search Here" name="q" />
<input type="password" placeholder="Password" name="pass" />


$(document).ready(function() {

  // or you can also run only support for what you want
  // - or -


Use this CSS if you would like your placeholder text to show up grey in browsers that do not natively support placeholder.

.placeholder{ color: #888; }


Support could be added for more HTML5 features. Ideas:

  • <input pattern=“/regex/” />


HTML5 Support is licensed under the MIT License. See the MIT-License.txt file for full details.