img0_butOn = new Image(133,35);
img0_butOn.src="images/about_butOn.jpg";
img0_but = new Image(175,35);
img0_but.src="images/about_but.jpg";

img1_butOn = new Image(128,35);
img1_butOn.src="images/films_butOn.jpg";
img1_but = new Image(128,35);
img1_but.src="images/films_but.jpg";

img2_butOn = new Image(132,35);
img2_butOn.src="images/contact_butOn.jpg";
img2_but = new Image(132,35);
img2_but.src="images/contact_but.jpg";





function over_image(parm_name) {
document[parm_name].src = eval(parm_name + "_butOn.src");
}
function off_image(parm_name) {
document[parm_name].src = eval(parm_name + "_but.src");
}