How can one include Parsley javacript library (parselyjs.org) into APEX?

I just attended a jQuery course, and the instructor demonstrated using Parsley ("the ultimate JavaScript form validation library"). I would like to use it my APEX form. It says installation is as follows:

<span class="tag"><<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"jquery.js"</span>></span><span class="javascript"></span><span class="tag"></<span class="title">script</span>></span><br/><span class="tag"><<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"parsley.min.js"</span>></span><span class="javascript"></span><span class="tag"></<span class="title">script</span>></span><br/><br/><span class="tag"><<span class="title">form</span> <span class="attribute">id</span>=<span class="value">"form"</span>></span><br/>...<br/><span class="tag"></<span class="title">form</span>></span><br/><br/><span class="tag"><<span class="title">script</span> <span class="attribute">type</span>=<span class="value">"text/javascript"</span>></span><span class="javascript"><br/>  $(<span class="string">'#form'</span>).parsley();<br/></span><span class="tag"></<span class="title">script</span>></span>