var SwImg; SwImg = new Array;
ImgPreload('otoiawase', 'common_img/otoiawase1.gif', 'common_img/otoiawase2.gif');
ImgPreload('sitemap', 'common_img/sitemap1.gif', 'common_img/sitemap2.gif');
ImgPreload('fudosan', 'index_img/fudosan1.gif', 'index_img/fudosan2.gif');
ImgPreload('recycle', 'index_img/recycle1.gif', 'index_img/recycle2.gif');
ImgPreload('hikami', 'doboku_img/flash_button1.gif', 'doboku_img/flash_button2.gif');

function ImgPreload() {
	var N = ImgPreload.arguments[0];
	SwImg[N] = new Image();
	SwImg[N][0] = new Image();
	SwImg[N][0].src = ImgPreload.arguments[1];
	SwImg[N][1] = new Image();
	SwImg[N][1].src = ImgPreload.arguments[2];
}

function ImgChenge() {
	var ID = ImgChenge.arguments[0];
	var N  = ImgChenge.arguments[1];
	document.images[ID].src = SwImg[ID][N].src;
}