pop up in YUI

gistfile1.js

<script type="text/javascript">// <![CDATA[
YUI().use('node', function(Y) {
 
    function init() {
        // The DOM is ready, lets say hello!
        say_hello();
    }
 
     Y.on("domready", init); 
});

function say_hello() {
    alert('Testing from Matt');
}
// ]]></script>