var chengeImage1 = new Array(0);
var chengeImage2 = new Array(0);
var chengeImage3 = new Array(0);
var chengeImage4 = new Array(0);
var chengeImage5 = new Array(0);
	chengeImage1[1]='http://www.shidotaira.co.jp/room/image/kasho_p1.jpg';
	chengeImage1[2]='http://www.shidotaira.co.jp/room/image/kasho_p2.jpg';
	chengeImage1[3]='http://www.shidotaira.co.jp/room/image/kasho_p3.jpg';
	chengeImage2[1]='http://www.shidotaira.co.jp/room/image/nanzan_p1.jpg';
	chengeImage2[2]='http://www.shidotaira.co.jp/room/image/nanzan_p2.jpg';
	chengeImage2[3]='http://www.shidotaira.co.jp/room/image/nanzan_p3.jpg';
	chengeImage2[4]='http://www.shidotaira.co.jp/room/image/nanzan_p4.jpg';
	chengeImage3[1]='http://www.shidotaira.co.jp/room/image/tofu_p1.jpg';
	chengeImage3[2]='http://www.shidotaira.co.jp/room/image/tofu_p2.jpg';
	chengeImage3[3]='http://www.shidotaira.co.jp/room/image/tofu_p3.jpg';
	chengeImage3[4]='http://www.shidotaira.co.jp/room/image/tofu_p4.jpg';
	chengeImage3[5]='http://www.shidotaira.co.jp/room/image/tofu_p5.jpg';
	chengeImage4[1]='http://www.shidotaira.co.jp/room/image/seiryo_p1.jpg';
	chengeImage4[2]='http://www.shidotaira.co.jp/room/image/seiryo_p2.jpg';
	chengeImage4[3]='http://www.shidotaira.co.jp/room/image/seiryo_p3.jpg';
	chengeImage5[1]='http://www.shidotaira.co.jp/room/image/hokusui_p1.jpg';
	chengeImage5[2]='http://www.shidotaira.co.jp/room/image/hokusui_p2.jpg';
	chengeImage5[3]='http://www.shidotaira.co.jp/room/image/hokusui_p3.jpg';

	for (i=0; i < chengeImage1.length; i++) {
		var preload = new Image();preload.src = chengeImage1[i];
		}
		function toggle1(imgIndex) {
			document['Room1'].src = chengeImage1[imgIndex];
		}
	
	for (i=0; i < chengeImage2.length; i++) {
		var preload = new Image();preload.src = chengeImage2[i];
		}
		function toggle2(imgIndex) {
			document['Room2'].src = chengeImage2[imgIndex];
		}
	
	for (i=0; i < chengeImage3.length; i++) {
		var preload = new Image();preload.src = chengeImage3[i];
		}
		function toggle3(imgIndex) {
			document['Room3'].src = chengeImage3[imgIndex];
		}

	for (i=0; i < chengeImage4.length; i++) {
		var preload = new Image();preload.src = chengeImage4[i];
		}
		function toggle4(imgIndex) {
			document['Room4'].src = chengeImage4[imgIndex];
		}

	for (i=0; i < chengeImage5.length; i++) {
		var preload = new Image();preload.src = chengeImage5[i];
		}
		function toggle5(imgIndex) {
			document['Room5'].src = chengeImage5[imgIndex];
		}