<script src="http://yui.yahooapis.com/3.1.0/build/yui/yui-min.js"></script>

YUI({
    //Last Gallery Build of this module
    gallery: 'gallery-2010.01.27-20'
}).use('gallery-yql', function(Y) {
    //Using events
    var q1 = new Y.yql('select * from github.user.info where (id = "davglass")');
    q1.on('query', function(r) {
        //Do something here.
    });
    q1.on('error', function(r) {
        //Do something here.
    });
    //Or the callback approach
    new Y.yql('select * from github.user.info where (id = "davglass")', function(r) {
        //Do something here.
        r.query; //The result
        r.error; //The error message
    });
});