btn_reserve=new Image();
btn_reserve.src="images/buttons/reservations.jpg";
btn_reserveRO=new Image();
btn_reserveRO.src="images/buttons/reservationsRO.jpg";

subscribe=new Image();
subscribe.src="images/buttons/subscribe.jpg";
subscribeRO=new Image();
subscribeRO.src="images/buttons/subscribeRO.jpg";

find=new Image();
find.src="images/buttons/find.jpg";
findRO=new Image();
findRO.src="images/buttons/findRO.jpg";


function over(item_id) {
   document.getElementById(item_id).src=eval(item_id+'RO').src;
}
function out(item_id) {
   document.getElementById(item_id).src=eval(item_id).src;
}