function updateTwitterFeed() {
    var element = $('twitter-feed-container');
    new Ajax("ajax.html?action=getTwitterFeed",{
        onComplete:showResponse,
        update:element
    }).request();
  
    function showResponse(response){
        element.innerHTML = response;
        // update the child height
        msNav.limitChildHeight(homeNews);
    }
    var t = setTimeout(function() { updateTwitterFeed(); }, 30000);
}
window.addEvent('load', function() { setTimeout(function() { updateTwitterFeed(); }, 30000) })