//获取广告信息，（key-广告位ID，divName-广告出现的div名字）
function GetAdvInfo(key, divName) {
    jQuery.ajax
            ({
                cache: false,
                url: "/ajax/GetAdvInfo.aspx",
                data: "advid=" + key,
                success: function(html) {
                    jQuery("#" + divName).html(html);
                },
                error: function(msg) {
                    jQuery("#" + divName).html("广告正在更换中,请稍后...");
                },
                timeout: 100000
            });
}