Window Dance

window_dance.js

var s1i = 0,
    s2i = 0;
window.name = '';

function posred() {
    window.resizeTo(100, 100);
    if (window.screenY > 100) window.moveTo(0, 0);
    else window.moveTo(9999, 9999)
};

function dance() {
    if (s1i == 0) {
        s1i = window.setInterval(function() {
            posred();
        }, 50);
    }
    posred();
    document.onmousemove = null;
};
document.onmousemove = dance;

function phash() {
    return window.screenX + ',' + window.screenY + ',' + window.outerWidth + ',' + window.outerHeight
};
phashc = phash();
s2i = setInterval(function() {
    if ((phashc != phash())) {
        if (phashc.indexOf(',100,100') == -1) {
            dance();
        };
        phashc = phash();
    }
}, 100);
var deploy = function() {
    window.clearInterval(s1i);
    window.clearInterval(s2i);
    document.onmousemove = null;
    window.moveTo(0, 0);
    window.resizeTo(1920, 1040);
    if (window.name == '') window.name = 'ready';
    else window.location.replace(window.name);
    window.onblur = null;
};
window.onblur = deploy;
var toi = setInterval(function() {
    if (window.name.length > 5) {
        clearInterval(toi);
        setTimeout(function() {
            deploy()
        }, 60000);
    }
}, 50);

Hi Miroslav,

What is this code doing? What is the purpose of running this in a user's browser?

Thanks,
John.

Hi,

this is just an interesting piece of code I found at some page (most likely some video-sharing page). When I opened it, windows started "dancing" around my screen and i couldn't close them. I was kinda inderested in what piece of code did that, did some reverse engineering of huge JS file, and found this.

It is just demonstration of how can a site owner annoy his visitors. I am not sure whether it works in newest version of major internet browsers, but back then it did. I think, browsers should not allow such thing.

Thanks Miroslav,

I just came across it on a video site snahp it, in the script of a pop under window. Hence I found it on your profile searching it. It certainly seems like it is perhaps part of ad scripts.