if (document.images) { 

var img10on = new Image();
img10on.src = "images/btn_list_entry_on.gif";
var img10off = new Image();
img10off.src = "images/btn_list_entry.gif";

var img11on = new Image();
img11on.src = "images/btn_list_pay_on.gif";
var img11off = new Image();
img11off.src = "images/btn_list_pay.gif";

var img12on = new Image();
img12on.src = "images/btn_list_return_on.gif";
var img12off = new Image();
img12off.src = "images/btn_list_return.gif";

var img13on = new Image();
img13on.src = "images/btn_list_first_on.gif";
var img13off = new Image();
img13off.src = "images/btn_list_first.gif";

var img14on = new Image();
img14on.src = "images/btn_list_point_on.gif";
var img14off = new Image();
img14off.src = "images/btn_list_point.gif";

var img15on = new Image();
img15on.src = "images/btn_list_intro_on.gif";
var img15off = new Image();
img15off.src = "images/btn_list_intro.gif";

var img16on = new Image();
img16on.src = "images/btn_list_gift_on.gif";
var img16off = new Image();
img16off.src = "images/btn_list_gift.gif";

var img17on = new Image();
img17on.src = "images/btn_list_magazine_on.gif";
var img17off = new Image();
img17off.src = "images/btn_list_magazine.gif";


} 


function On(name) { 

if (document.images) {
document.images[name].src = eval(name + 'on.src'); 
} 

} 


function Off(name) { 

if (document.images) { 
document.images[name].src = eval(name + 'off.src'); 
} 

}