obj = document.getElementById('banner4');
ad_b = "<center>";
ad_b += "<a href='cb.php?c=cl&b=4' target='blank'>";
ad_b += "<img class='img' src='sb.php?c=sh&b=4&rh=1092474636' width='120' height='60' border='0' alt='ClubFurniture'>";
ad_b += "</a>";
ad_b += "</center>";
obj.innerHTML = ad_b;