How to add stroke to a sprite?

programming flash
1

I have a series of previously created rectangles, all with a lineStyle(stoke), but later, when in the program, i highlight them via colorTranform with MOUSE_OVER, and and return the color back to its previous state with MOUSE_OUT, and try to re-apply the lineStyle, it returns the color, but not the lineStyle.

Here is my code:

function highlightSquare(e:MouseEvent)
{
    if (building == true)
    {
        transform1.color = 0x00CCFF;
        var temp1 = e.currentTarget;
        temp1.transform.colorTransform = transform1;
    }
}

function unHighlightSquare(e:MouseEvent)
{
    if (building == true)
    {
        transform1.color = 0x00cc33;
        var temp1 = e.currentTarget;
        temp1.transform.colorTransform = transform1;
        temp1.graphics.lineStyle(1,0x0033ff);
    }
}

any help or suggestions? thanks.