Web Forms :: Ad Displaying Ad In New Page?

i used ad rotator to show ads in my project , i calculated the number pf clicks in separate page , my coding is as below

if (Request.QueryString.Count > 0)
{
oAds = new OMSAdManagement();
int id = Convert.ToInt32(Request.QueryString["ID"].ToString());
oAds = SiteBase.GetAdsbyAdID(id);
if(oAds.MaxNumberofClick !=0)
{
if (oAds.NumberofClick < oAds.MaxNumberofClick) SiteBase.UpdateAdClicksbyAdID(oAds);
else
{
oAds.IsActive = false;
SiteBase.UpdateAdActivebyAdID(oAds);
}
}
string st = Request.UrlReferrer.ToString();
Response.Redirect(st, false);
Response.Write("");
}

i want to redirect to same page after updating the number of clicks , and wand to show adds in new window, but i cant do the both , only one line is workin this string st = Request.UrlReferrer.ToString(); Response.Redirect(st, false); or this Response.Write(""); not the both how can i solve the problem.