AUI().ready(
    /*
     This function gets loaded when all the HTML, not including the portlets, is
     loaded.
     */

    function () {

    }
);

Liferay.Portlet.ready(
    /*
     This function gets loaded after each and every portlet on the page.

     portletId: the current portlet's id
     node: the Alloy Node object of the current portlet
     */

    function (portletId, node) {

    }
);

Liferay.on(
    'allPortletsReady',

    /*
     This function gets loaded when everything, including the portlets, is on
     the page.
     */

    function () {

    }
);