https://www.camstute.com/static/includes/js-popunder.js

1function jsPopunder(sUrl, sConfig) {
2
3    var _parent  = (top != self && typeof(top.document.location.toString()) === 'string') ? top : self;
4    var popunder = null;
5
6    sConfig      = (sConfig || {});
7
8    var sName    = (sConfig.name   || Math.floor((Math.random() * 1000) + 1));
9    var sWidth   = (sConfig.width  || window.outerWidth  || window.innerWidth);
10    var sHeight  = (sConfig.height || (window.outerHeight-100) || window.innerHeight);
11
12    var sPosX    = (typeof(sConfig.left) != 'undefined') ? sConfig.left.toString() : window.screenX;
13    var sPosY    = (typeof(sConfig.top)  != 'undefined') ? sConfig.top.toString()  : window.screenY;
14
15    /* capping */
16    var sWait    = (sConfig.wait || 3600); sWait = (sWait * 1000);
17    var sCap     = (sConfig.cap  || 2);
18
19    /* cookie stuff */
20    var popsToday = 0;
21    var cookie    = (sConfig.cookie || '__.popunder');
22
23    var browser = function() {
24        var n = navigator.userAgent.toLowerCase();
25        var b = {
26            webkit: /webkit/.test(n),
27            mozilla: (/mozilla/.test(n)) && (!/(compatible|webkit)/.test(n)),
28            chrome: /chrome/.test(n),
29            msie: (/msie/.test(n)) && (!/opera/.test(n)),
30            firefox: /firefox/.test(n),
31            safari: (/safari/.test(n) && !(/chrome/.test(n))),
32            opera: /opera/.test(n)
33        };
34        b.version = (b.safari) ? (n.match(/.+(?:ri)[\/: ]([\d.]+)/) || [])[1] : (n.match(/.+(?:ox|me|ra|ie)[\/: ]([\d.]+)/) || [])[1];
35        return b;
36    }();
37
38
39    function isCapped() {
40        try {
41            popsToday = Math.floor(document.cookie.split(cookie + 'Cap=')[1].split(';')[0]);
42        } catch (err) {}
43        return (sCap <= popsToday || document.cookie.indexOf(cookie + '=') !== -1);
44    }
45
46
47    function doPopunder(sUrl, sName, sWidth, sHeight, sPosX, sPosY) {
48        if (isCapped()) return;
49
50        var sOptions = 'toolbar=no,scrollbars=yes,location=no,statusbar=no,menubar=no,resizable=1,width=' + sWidth.toString() + ',height=' + sHeight.toString() + ',screenX=' + sPosX + ',screenY=' + sPosY;
51
52        document.onclick = function() {
53            if (isCapped()) return;
54
55            // ---
56            // chrome27 fix
57            window.open("javascript:window.focus();", "_self", "");
58            // ---
59
60            popunder = _parent.window.open(sUrl, sName, sOptions);
61            if (popunder) {
62                // cookie
63                var now = new Date();
64                document.cookie = cookie + '=1;expires=' + new Date(now.setTime(now.getTime() + sWait)).toGMTString() + ';path=/;SameSite=Lax';
65                now = new Date();
66                document.cookie = cookie + 'Cap=' + (popsToday + 1) + ';expires=' + new Date(now.setTime(now.getTime() + (84600 * 1000))).toGMTString() + ';path=/;SameSite=Lax';
67                pop2under();
68            }
69        };
70    }
71
72
73    function pop2under() {
74        try {
75            popunder.blur();
76            popunder.opener.window.focus();
77            window.self.window.blur();
78            window.focus();
79
80            if (browser.firefox) openCloseWindow();
81            if (browser.webkit) openCloseTab();
82        } catch (e) {}
83    }
84
85    function openCloseWindow() {
86        var ghost = window.open('about:blank');
87        ghost.focus();
88        ghost.close();
89    }
90
91    function openCloseTab() {
92        var ghost = document.createElement("a");
93        ghost.href   = "about:blank";
94        ghost.target = "PopHelper";
95        document.getElementsByTagName("body")[0].appendChild(ghost);
96        ghost.parentNode.removeChild(ghost);
97
98        var clk = document.createEvent("MouseEvents");
99        clk.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, true, false, false, true, 0, null);
100        ghost.dispatchEvent(clk);
101
102        // open a new tab for the link to target
103        window.open(ghost.href, ghost.target).close();
104    }
105
106
107    // abort?
108    if (isCapped()) {
109        return;
110    } else {
111        doPopunder(sUrl, sName, sWidth, sHeight, sPosX, sPosY);
112    }
113}