function index_on(NO) {
	var area = document.getElementsByTagName("area");
	var img = document.getElementsByTagName("img");
	var flg = 0;
	img["pr"].src = "/cbj/ig/html/images/bn/index_price_" + NO + ".gif";
}
function index_out() {
	var area = document.getElementsByTagName("area");
	var img = document.getElementsByTagName("img");
	var flg = 0;
	img["pr"].src = "/cbj/ig/html/images/bn/index_price.gif";
}