<!--
function windowTest(lnk){
    if(window.open){ //no window.open == window was not script opened
        if(window.opener && !window.opener.closed && opener.location){
            opener.location = lnk.href;
            //maybe instead - opener.location.href = lnk.href;
            opener.focus();
            self.close();
            mainpage.close();
            return true;
        }
        if(window.opener.closed){
            window.open(lnk);
            self.close();
            mainpage.close();
        }
    }
    return true;
}
//-->