function HideModalPopupGo() {
    var modalpopup = $find('ctl00_ContentPlaceHolder1_Panel1_ModalPopupExtender');
    modalpopup.hide();
    location.href = "duyuru_detay.aspx?yayin_id=350&sonraki=226";
}
function HideModalPopup() {
    var modalpopup = $find('ctl00_ContentPlaceHolder1_Panel1_ModalPopupExtender');
    modalpopup.hide();
}