hope this is of use to someone
jquery.popunder.js way (download link)
https://github.com/chrismccoy/jquery.popunder
Code:
$.popunder('http://google.com',24); // once every 24 hours
$.popunder('http://google.com',0); // reset when browser closes
$.popunder('http://google.com'); // every time
full html example
Code:
!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>jquery.popunder.js</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery.cookies.js"></script>
<script type="text/javascript" src="js/jquery.popunder.js"></script>
<script type="text/javascript">
jQuery(document).ready(function ($) {
$(document).click(function () {
$.popunder('http://google.com',24); // once every 24 hours
});
});
</script>
</head>
<body>
</body>
</html>
Here is a previous method of doing a popunder.
Code:
var Popup = {
AddListener: function(target, eventName, handler) {
if (eventName == "beforeunload" || eventName == "unload") {
var originalHandler = target["on" + eventName];
if (originalHandler) {
target["on" + eventName] = function(e) {
var ret = originalHandler(e);
if (typeof(ret) == "undefined" || ret == "") ret = handler(e);
return ret;
};
} else {
target["on" + eventName] = handler;
}
} else if (target.addEventListener) {
target.addEventListener(eventName, handler, false);
} else if (target.attachEvent) {
target.attachEvent("on" + eventName, handler);
} else {
var originalHandler = target["on" + eventName];
if (originalHandler) {
target["on" + eventName] = function(e) {
originalHandler(e);
handler(e);
};
} else {
target["on" + eventName] = handler;
}
}
},
CreatePop: function(e) {
var popURL = "about:blank"
var popID = "ad_" + Math.floor(89999999 * Math.random() + 10000000);
var pxLeft = 0;
var pxTop = 0;
// Place the window coordinates in the center of the active window
pxLeft = (this.GetWindowLeft() + (this.GetWindowWidth() / 2) - (this.PopWidth / 2));
pxTop = (this.GetWindowTop() + (this.GetWindowHeight() / 2) - (this.PopHeight / 2));
// Create the popup
this.PopWin = this.Window.open(popURL, popID, 'toolbar=0,scrollbars=1,location=1,statusbar=1,menubar=0,resizable=1,top=' + pxTop + ',left=' + pxLeft + ',width=' + this.PopWidth + ',height=' + this.PopHeight);
if (this.PopWin) {
// We don't want to pop again on the same pop load.
this.PopLoaded = true;
// Increment the successfull pop count cookie
this.SetPoppedTotal();
// Make the popup show either in front or behind the page
if (this.PopFocus == 0) {
this.PopWin.blur();
if (navigator.userAgent.toLowerCase().indexOf("applewebkit") > -1) {
this.Window.blur();
this.Window.focus();
}
}
// Load the url in the placeholder window
this.PopWin.Init = function(e) {
with(e) {
this.Params = e.Params; // IE9 Bugfix. "this" not functioning properly
// Main code function
this.Main = function() {
if (typeof window.mozPaintCount != "undefined") {
var x = this.window.open("about:blank");
x.close();
}
// Set the parameters in the local scope
var popURL = this.Params.PopURL;
try {
opener.window.focus();
} catch (err) {}
window.location = popURL;
}
this.Main();
}
};
this.PopWin.Params = {
PopURL: this.PopURL
}
this.PopWin.Init(this.PopWin);
}
return true;
},
GetWindowHeight: function() {
var myHeight = 0;
if (typeof(this.Window.innerHeight) == 'number') {
//Non-IE
myHeight = this.Window.innerHeight;
} else if (this.Window.document.documentElement && this.Window.document.documentElement.clientHeight) {
//IE 6+ in 'standards compliant mode'
myHeight = this.Window.document.documentElement.clientHeight;
} else if (this.Window.document.body && this.Window.document.body.clientHeight) {
//IE 4 compatible
myHeight = this.Window.document.body.clientHeight;
}
return myHeight;
},
GetWindowWidth: function() {
var myWidth = 0;
if (typeof(this.Window.innerWidth) == 'number') {
//Non-IE
myWidth = this.Window.innerWidth;
} else if (this.Window.document.documentElement && this.Window.document.documentElement.clientWidth) {
//IE 6+ in 'standards compliant mode'
myWidth = this.Window.document.documentElement.clientWidth;
} else if (this.Window.document.body && this.Window.document.body.clientWidth) {
//IE 4 compatible
myWidth = this.Window.document.body.clientWidth;
}
return myWidth;
},
GetWindowTop: function() {
return (this.Window.screenTop != undefined) ? this.Window.screenTop : this.Window.screenY;
},
GetWindowLeft: function() {
return (this.Window.screenLeft != undefined) ? this.Window.screenLeft : this.Window.screenX;
},
InitPop: function(e) {
// Allow one pop per page, prevent double execution
if (this.PopLoaded || arguments.callee.init) return true;
// Double check to see if the pop cap has been reached
if (this.GetPoppedTotal() >= this.PopFreq) return true;
arguments.callee.init = true;
var status = this.CreatePop(e);
arguments.callee.init = false;
return status;
},
Watch: function(ctx, options) {
for (var i in options) {
this[i] = options[i];
}
this.Window = ctx;
Popup.AddListener(this.Window.document, "click", function(e) {
if (!Popup.InitPop(e)) {
if (e.preventDefault) {
e.preventDefault()
}
e.returnValue = false;
}
});
},
CreateCookie: function(name, value, days) {
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
} else var expires = "";
this.Window.document.cookie = name + "=" + value + expires + "; path=/";
},
ReadCookie: function(name) {
var ca = this.Window.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); //delete spaces
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
}
return null;
},
GetPoppedTotal: function() {
var popTotal = this.ReadCookie(this.CookieName);
popTotal = (popTotal != null) ? parseInt(popTotal) : 0;
return popTotal;
},
SetPoppedTotal: function() {
var popTotal = this.ReadCookie(this.CookieName);
if (popTotal != null) this.CreateCookie(this.CookieName, parseInt(popTotal) + 1, 1);
else this.CreateCookie(this.CookieName, 1, 1);
}
}
var PopUpConfig = {
CookieName: "goog",
PopFocus: 0,
PopURL: "http://www.google.com",
PopFreq: 1,
PopWidth: 1024,
PopHeight: 764
}
Popup.Watch(window, PopUpConfig);