left = new Image();
left.src = "/img/main/shop_left.png";
left_o = new Image();
left_o.src = "/img/main/shop_lefta.png";

right = new Image();
right.src = "/img/main/ashop_right.png";
right_o = new Image();
right_o.src = "/img/main/ashop_righta.png";

function swon(imagename, cacheimage) {
	document.images[imagename].src = eval(cacheimage + ".src");
}