another one of naming and retrieving

hi, i am trying to deal with some sprites i have created via script. each one can have draings and stuff, but in particular, all have a textfield inside.

something like (not the current code, but to give you an idea)

var _newtext:textfield = new textfield();

_newtext.name = "textname";

//

some_array[some_pos] = new sprite();

some_array[some_pos].addchild(_newtext);

(...)

// this gets the sprite in the array as parameter, they all have a textfield called 'textname' (not current name, but same case)

function whatever(some_sprite:sprite, etc):void {

// tried this:

some_sprite.textname.x = x_value; // gives error

// also this

var mytextfield:textfield = (textfield)some_sprite.getChildByName("textname"); // i dont know if there is casting in as3, but it also gives error.

}

in any case, what i am trying to do is access the properties of the textfiled defined in each sprite. it is not that there is no textfield named whatever inside the sprite, i defined it and i added with addchild when i created it, same for any sprite that gets there. how do i access the textfield inside?

tnx