I trying to make the div fall from top to bottom. 
Here is the code that i tried but it doesn't satisfy my needs .I want to generate the 20 div once ready then how to make that 20 div falling continuously from top to bottom consistently. Is it possible to do that in jquery.
<http://jsfiddle.net/MzVFA/>
Here is the code 

```
  function fallingSnow() {

        var snowflake = $('<div class="snowflakes"></div>');
        $('#snowZone').prepend(snowflake);
        snowX = Math.floor(Math.random() * $('#site').width());
        snowSpd = Math.floor(Math.random() + 5000);

        snowflake.css({'left':snowX+'px'});
        snowflake.animate({
            top: "500px",
            opacity : "0",

        }, snowSpd, function(){
            $(this).remove();
            fallingSnow();
        });

    }
    var timer = Math.floor(Math.random() +1000);

    window.setInterval(function(){
        fallingSnow();
    }, timer);

```

Much Appreciate your Help.

Thanks