مشکل در پاپ آپ ( لطفا کمک کنید )

سلام
من کد زیر رو برای پاپ آپ استفاده میکنم اما یه مشکل داره اونم اینه که روی صفحه باز میشه .
آیا با دستکاری در کد میشه کاری کرد که پشت صفحه باز بشه .
ممنون میشم اگه راهنمایی بفرمایید


<script type="text/javascript">
var needpop = 1;

var vc_cn = "jot9843504";
var vc_url = "http://akisar.ir/%d8%aa%d8%a8%d9%84%db%8c%d8%ba%d8%a7%d8%aa/";
if (readCookie(vc_cn)) {
needpop = 0;
}else{
needpop = 1;
}
var PopWidth = 1000;
var PopHeight = 768;
var PopTargetingMethod = 100;
var PopUseDivLayer = 1;
var RTSDomain = vc_url;
var debugDomain = vc_url;
var Page_Popped = false;
var Page2_Popped = false;
var Page_Loaded = false;
var Page_Enter;
var MySiteDomain = window.location.href.split('/');
if (needpop == 1) {
InitPop()
}
function InitPop() {
Page_Enter = new Date();
if (window.captureEvents) {
window.captureEvents(Event.CLICK);
window.onclick = LoadStandardPop
} else document.onclick = LoadStandardPop
}
function SiteEnter() {
Page_Loaded = true
}
function createCookie(name, value, days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(12*60*60*1000));
var expires = "; expires=" + date.toGMTString()
} else var expires = "";
document.cookie = name + "=" + value + expires + "; path=/";
}
function readCookie(name) {
var ca = document.cookie.split(';');
var nameEQ = name + "=";
for (var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') c = c.substring(1, c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length)
}
return null
}
function RetrieveCount() {
var cookieName = vc_cn;
var popSuccesses = readCookie(cookieName);
if (popSuccesses != null) popSuccesses = parseInt(popSuccesses);
else popSuccesses = 0;
return popSuccesses
}
function IncrementCount() {
var cookieName = vc_cn;
var popSuccesses = readCookie(cookieName);
if (popSuccesses != null) createCookie(cookieName, parseInt(popSuccesses) + 1, 1);
else createCookie(cookieName, 1, 1)
}
function LoadStandardPop() {
if (Page_Popped == true) return;
var pLoaded = false;
if (window.SymRealWinOpen) {
open = SymRealWinOpen
}
if (window.NS_ActualOpen) {
open = NS_ActualOpen
}
var pxLeft = 0;
var pxTop = 0;
if (screen.width > 0 && screen.height > 0) {
pxLeft = (screen.width / 2) - (PopWidth / 2);
pxTop = (screen.height / 2) - (PopHeight / 2) - 50;
if (pxLeft < 0) pxLeft = 0;
if (pxTop < 0) pxTop = 0
}
pLoaded = open(vc_url, '', 'toolbar=0,scrollbars=0,location=0,statusbar=0,men ubar=1,resizable=1,top=' + pxTop + ',left=' + pxLeft + ',width=' + PopWidth + ',height=' + PopHeight);
if (pLoaded) {
Page_Popped = true;
IncrementCount()
} else {
Page_Popped = true;
if (Page_Loaded) initAdLayer();
else XBrowserAddHandlerPops(window, "load", "initAdLayer")
}
window.focus()
}
</script>