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) {
		btn_01_over = newImage("./make/btn_01_over.gif");
		btn_02_over = newImage("./make/btn_02_over.gif");
		btn_03_over = newImage("./make/btn_03_over.gif");
		btn_04_over = newImage("./make/btn_04_over.gif");
		btn_05_over = newImage("./make/btn_05_over.gif");
		btn_06_over = newImage("./make/btn_06_over.gif");
		btn_07_over = newImage("./make/btn_07_over.gif");
		btn_08_over = newImage("./make/btn_08_over.gif");
		btn_11_over = newImage("./make/btn_11_over.gif");
		btn_12_over = newImage("./make/btn_12_over.gif");
		album20_over = newImage("./make/phot20_1.gif");
		moviel20_over = newImage("./make/movie20_1.gif");
		en_1bo = newImage("./make/en_1bo.gif");
		en_2bo = newImage("./make/en_2bo.gif");
		en_3bo = newImage("./make/en_3bo.gif");
		en_yoo = newImage("./make/en_youyaku2.gif");
		preloadFlag = true;
	}
}

function go_url(xArg){
	window.open(xArg,"","toolbar=0,location=0,status=0,menubar=0,resizable=0,scrollbars=0,width=750,height=500,titlebar=0");
}

function xSubWin(xLoc){
	xWindow=window.open(xLoc,'SubWin','toolbar=0,location=0,status=0,menubar=0,resizable=0,scrollbars=0,titlebar=0,alwaysRaised=1');
	xWindow.window.focus();
}