Testing js

function insertScript(link)
{
    //link is the link to the script.
    var head = document.getElementsByTagName("head")[0]; //We'll insert it after the first element of head.
    var script = document.createElement('script');
    script.href = link;
    script.type = "text/javascript";
    head.appendChild(script);
}
/*
* A simple example
* This example will insert the the jquery code into the head
*/

insertScript("http://code.jquery.com/jquery-3.0.0.min.js");