Which javascript they are using at the given link? [closed]

It's difficult to 开发者_如何学Gotell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

Can anybody inspect which javascript they are using for the floating baloons? - http://themeforest.net/bundles/birthday

I was looking with the firebug for a while, but cant get which would be the right one. Thanks!

---

http://themeforest.net/bundles/javascripts/birthday_running.js

And here's the horribly horrible if...else repeated coding horror being used.

$(".balloon").each(function () {
        var $this = $(this),
            width = $this.width(),
            height = $this.height(),
            rand = Math.random(),
            bgPosX,
            bgPosY = rand * (height),
            bgImg,
            animStep = 1 + (rand * 3),
            moveBalloon,
            animLoop;

        if ($this.is(".b1")) {
            bgPosX = Math.floor((width / 2)) - 620;
            bgImg = 1;
        } else if ($this.is(".b2")) {
            bgPosX = Math.floor((width / 2)) - 540;
            bgImg = 2;
        } else if ($this.is(".b3")) {
            bgPosX = Math.floor((width / 2)) - 590;
            bgImg = 3;
        } else if ($this.is(".b4")) {
            bgPosX = Math.floor((width / 2)) - 590;
            bgImg = 4;
        } else if ($this.is(".b5")) {
            bgPosX = Math.floor((width / 2)) + 470;
            bgImg = 2;
        } else if ($this.is(".b6")) {
            bgPosX = Math.floor((width / 2)) + 450;
            bgImg = 4;
        } else if ($this.is(".b7")) {
            bgPosX = Math.floor((width / 2)) + 510;
            bgImg = 1;
        } else if ($this.is(".b8")) {
            bgPosX = Math.floor((width / 2)) + 560;
            bgImg = 3;
        }

        $this.css({
            "background-position": bgPosX + "px " + bgPosY + "px",
            "background-image": "url(/images/bundles/birthday/balloon" + bgImg + ".png)"
        });

        moveBalloon = function () {
            if (bgPosY < -204) {
                bgPosY = $this.height();
            }
            bgPosY -= animStep;
            $this.css("background-position", bgPosX + "px " + bgPosY + "px");       
        };

        animLoop = function () {
            moveBalloon();
            window.requestAnimFrame(animLoop);
        };

        animLoop();

        $this.addClass("balloon");
    });