path_1 = "/Portals/0/stevenf/sf_pics/steven_";
path_2 = ".jpg";
top_num = 8;
pic_num = Math.floor(Math.random()*(top_num + 1));
document.sf_pic.src = path_1 + pic_num + path_2;
function change_pic()
{
pic_num = (pic_num < top_num) ? pic_num + 1 : 0;
document.sf_pic.src = path_1 + pic_num + path_2;
}