if (!window.isHouseAd) {
var adtab = document.getElementById('adtab');
var backimg = document.getElementById('background-img');
if (!window.isAfcAd) {
backimg.src = 'http://static2.orkut.com/img/lb-720x480.png';
backimg.width = '724';
adtab.className = 'logout-ad-tab-720x480';
} else {
backimg.src = 'http://static2.orkut.com/img/lb-336x280.png';
backimg.width = '530';
adtab.className = 'logout-ad-tab-336x280';
}
adtab.style.visibility = 'visible';
adtab.style.display = 'block';
backimg.style.visibility = 'visible';
backimg.style.display = 'block';
}