var ADPage = new Object();
var InterId=setInterval("CheckADPage()",1000);
var caseTmp=getCookie();
switch (caseTmp)
{
case 0 :
     break;
case 1 :
     OpenADPage();
     ADPage.blur();
     break;
default :
     OpenADPage();
     ADPage.focus();
     saveCookie("Myweb",5000);
     break;
}

function OpenADPage(){
       newleft=screen.width - 300;
       ADPage=window.open("http://hiad.myweb.hinet.net/280x300.html","myweb_pop","height=285,width=310,top=0,left=" + newleft);
}

function CheckADPage(){
         if ((ADPage.closed) && (caseTmp != 1))
            saveCookie("MywebADPage",150000);
}

function getCookie()
{
        var strCookie;
        strCookie = document.cookie;
        nameCheck = strCookie.split(";");
        if (nameCheck[0] == "Myweb")               //frame
           return 0;
        else if (nameCheck[0] == "MywebADPage")    //pop-under ADpage
             return 1;
        else return 2;
}

function saveCookie(name, expires){
        var strCookie = name;
        if (expires){
           var curTime = new Date();
           curTime.setTime(curTime.getTime() + expires);
                      strCookie += "; expires=" + curTime.toGMTString();
           strCookie +="; path="+ "/";
           strCookie += "; domain="+ ".myweb.hinet.net";
           document.cookie=strCookie;
        }

}