img0_butOn = new Image(131,26);
img0_butOn.src="images/1_butOn.gif";
img0_but = new Image(131,26);
img0_but.src="images/1_but.gif";

img1_butOn = new Image(139,26);
img1_butOn.src="images/2_butOn.gif";
img1_but = new Image(139,26);
img1_but.src="images/2_but.gif";

img2_butOn = new Image(169,26);
img2_butOn.src="images/3_butOn.gif";
img2_but = new Image(169,26);
img2_but.src="images/3_but.gif";

img3_butOn = new Image(157,26);
img3_butOn.src="images/4_butOn.gif";
img3_but = new Image(157,26);
img3_but.src="images/4_but.gif";

img4_butOn = new Image(124,26);
img4_butOn.src="images/5_butOn.gif";
img4_but = new Image(124,26);
img4_but.src="images/5_but.gif";

img5_butOn = new Image(93,26);
img5_butOn.src="images/6_butOn.gif";
img5_but = new Image(93,26);
img5_but.src="images/6_but.gif";





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");
}