st_ban_pic = new Array (3);
st_ban_pic[0] = new Image;
st_ban_pic[0].src = "images/justine_banner.jpg";
st_ban_pic[1] = new Image;
st_ban_pic[1].src = "images/haley_banner.jpg";
st_ban_pic[2] = new Image;
st_ban_pic[2].src = "images/connie_banner.jpg";

function showpicture(i)
{
    document.st_banner.src = st_ban_pic[i].src;
    i++;
    if(i == 3)
    {
        i = 0;
    }
    setTimeout("showpicture(" + i + ")", 4000);
}