var protocolType = document.location.protocol; 
function showImg_172(obj) {
    if (typeof(adObj_172) !== 'undefined') {
        document.getElementById(adObj_172).innerHTML = "<a href=\""+protocolType+"//track.igg.com/click.php?id=172&amp;cid=0\" target=\"_blank\" class=\"link172\"><img src=\""+protocolType+"//track.igg.com/file/image/2009/08/06/2009080602310423631.jpg\" alt=\""+protocolType+"//gw.igg.com/event/wheel/index.php\" style=\"border:0px;\" /></a>";
    } else {
        obj.parentNode.innerHTML = "<a href=\""+protocolType+"//track.igg.com/click.php?id=172&amp;cid=0\" target=\"_blank\" class=\"link172\"><img src=\""+protocolType+"//track.igg.com/file/image/2009/08/06/2009080602310423631.jpg\" alt=\""+protocolType+"//gw.igg.com/event/wheel/index.php\" style=\"border:0px;\" /></a>";
    }
}

var imgObj = '<span><img src="'+protocolType+'//track.igg.com/file/image/2009/08/06/2009080602310423631.jpg" onload="showImg_172(this)" style="display:none" /></span>';
document.write(imgObj);