Google Hosted Javascript Libraries

The Google Hosted Libraries provides your applications with stable, reliable, high-speed, globally available access to all of the most popular, open-source JavaScript libraries.To load a hosted library, copy and paste the HTML snippet for that library (shown below) in your web page. For instance, to load jQuery, embed the <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> snippet in your web page.
jQuery

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> 

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 

jQuery Mobile

<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jquerymobile/1.4.3/jquery.mobile.min.css" />

<script src="//ajax.googleapis.com/ajax/libs/jquerymobile/1.4.3/jquery.mobile.min.js"></script> 

jQuery UI

<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.1/themes/smoothness/jquery-ui.css" />

<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.1/jquery-ui.min.js"></script> 

MooTools

<script src="//ajax.googleapis.com/ajax/libs/mootools/1.5.0/mootools-yui-compressed.js"></script> 

Prototype

<script src="//ajax.googleapis.com/ajax/libs/prototype/1.7.2.0/prototype.js"></script> 

script.aculo.us

<script src="//ajax.googleapis.com/ajax/libs/scriptaculous/1.9.0/scriptaculous.js"></script> 

SWFObject

<script src="//ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js"></script> 

three.js

<script src="//ajax.googleapis.com/ajax/libs/threejs/r67/three.min.js"></script> 

Web Font Loader

<script src="//ajax.googleapis.com/ajax/libs/webfont/1.5.3/webfont.js"></script>