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) {
		top_menu01_over = newImage("image/top_menu01-over.gif");
		top_menu02_over = newImage("image/top_menu02-over.gif");
		top_menu03_over = newImage("image/top_menu03-over.gif");
		top_menu04_over = newImage("image/top_menu04-over.gif");
		top_menu05_over = newImage("image/top_menu05-over.gif");
		top_menu06_over = newImage("image/top_menu06-over.gif");
		top_menu07_over = newImage("image/top_menu07-over.gif");
		top_menu08_over = newImage("image/top_menu08-over.gif");
		preloadFlag = true;
	}
}

function setURL1(url)
{
	window.open(url,"new","width=680,height=600,scrollbars=yes");
}

function setURL2(url)
{
	window.open(url,"new2","width=470,height=420,scrollbars=yes");
}