Can you put: _root.mc.onPress = function(){ inside a FOR { loop?

[SpockBert]

Hi trying to do something really simple here but its not working properly. Using Flash 8.

I have 3 movieclips (to be turned into buttons) on the main stage, instances named: "charm1", "charm2" and "charm3". On the main timeline, I have this code. Using a for loop I'm trying to assign a bit of code to each movieclip when its clicked on:

for (i = 1; i < 4; i++){

    trace ("i value:" + i);		
    // displays, "i value:1", "i value:2", "i value:3" like it should
		
    _root["charm" + i].onPress = function(){

        trace ("i value:" + i);
        //displays "i value:4" for all 3 buttons, makes no sense!

    };

}

Why is my value for i, being incremented? Can anyone help, are there certain bits of code that aren't allowed inside a For loop?

Cheers
Si