Need a help with animation a box(colision)

Hi! I am noob with script in unity 3d, i'm just new with this game engine... I wanna make a simples box animation play if the first person control hit the other box(i made this box a trigger, because i dont know how i can make other methods)...

i try to use the script:

function OnTriggerEnter(hit:Collider)

{

if(hit.gameObject.tag=="playbox") // If the FPC hit the box with tag "playbox", play the box with animation...

{

animation.Play("cu"); // This is the box with animation...

}

}

sorry my bad english...

Not really an answer, only a speculation: In your trigger script, how do you refer to your "other box"? From what I read I would expect that you unintenionelly try to animate your person control or the box you collide with, but not the "other box".