function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		cart_over = newImage("images/cart-over.jpg");
		navi01_over = newImage("images/navi01-over.jpg");
		navi02_over = newImage("images/navi02-over.jpg");
		navi03_over = newImage("images/navi03-over.jpg");
		navi04_over = newImage("images/navi04-over.jpg");
		navi05_over = newImage("images/navi05-over.jpg");
		navi06_over = newImage("images/navi06-over.jpg");
		preloadFlag = true;
	}
}

function openFES(){

	var url = "https://premium.kantanshop.com/trial/trial.php";

	window.open(url,"trial","width=785,height=500,menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no");

}