//各ページメニュー
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) {
		nemu01_over = newImage("../images/nemu01-over.gif");
		nemu02_over = newImage("../images/nemu02-over.gif");
		nemu03_over = newImage("../images/nemu03-over.gif");
		nemu04_over = newImage("../images/nemu04-over.gif");
		nemu05_over = newImage("../images/nemu05-over.gif");
		nemu06_over = newImage("../images/nemu06-over.gif");
		nemu07_over = newImage("../images/nemu07-over.gif");
		nemu08_over = newImage("../images/nemu08-over.gif");
		nemu09_over = newImage("../images/nemu09-over.gif");
		preloadFlag = true;
	}
}