Snowfalling/particle scene

the code i used to make a snowfalling scene
took me about 4-5 hours to figure it out but meh.

stage.addEventListener(Event.ENTER_FRAME, snowflake);
function snowflake (event : Event ) : void// function to create snowflakes
{
var _Snowflake:mcSnowflake;

_Snowflake = new mcSnowflake();
addChild(_Snowflake);
_Snowflake.x = -350 + Math.random() * 900;// placement of snowflake
_Snowflake.y = Math.random() * 40;//placement of snowflake
_Snowflake.scaleX =_Snowflake.scaleY = Math.random();//size of snowflake random
_Snowflake.alpha = Math.random() * 1 ;//transparency of snowlake random
stage.addEventListener(Event.ENTER_FRAME, snowfall);

function snowfall(event:Event):void
{
if ( _Snowflake.y> 400 || _Snowflake.x> 550)//to keep em moving just off the stage
{ stage.removeEventListener(Event.ENTER_FRAME, snowfall);
removeChild(_Snowflake);
}
else
{ _Snowflake.y += 5; _Snowflake.x += Math.random() * 10; }
}


}