Another blur question - please help me with this script

hello,

how can i modify the following script so the effect works upon image load instead of rollover?? (found the tut here

onClipEvent(load)
{
dir = 0;
speed = 6;
original._alpha = 0
this.onRollOver = function()
{
dir = 1;
}

    this.onRollOut = function()
    {
            dir = -1;
    }
    useHandCursor = false;

}
onClipEvent(enterFrame)
{
temp = original._alpha + speed*dir;
original._alpha = Math.min(100,Math.max(temp,0));

}

it should obvious, but i’ve tried everything i can think of and it won’t work…

thanks for any help,
s.