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) {
		main1 = newImage("http://fccint.com/en/image/navi_main/1on.gif");
		main2 = newImage("http://fccint.com/en/image/navi_main/2on.gif");
		main3 = newImage("http://fccint.com/en/image/navi_main/3on.gif");
		main4 = newImage("http://fccint.com/en/image/navi_main/4on.gif");
		main5 = newImage("http://fccint.com/en/image/navi_main/5on.gif");
		main6 = newImage("http://fccint.com/en/image/navi_main/6on.gif");
		main7 = newImage("http://fccint.com/en/image/navi_main/7on.gif");
		sub11 = newImage("http://fccint.com/en/image/navi_main/s2-1on.gif");
		sub12 = newImage("http://fccint.com/en/image/navi_main/s2-2on.gif");
		sub13 = newImage("http://fccint.com/en/image/navi_main/s2-3on.gif");
		sub14 = newImage("http://fccint.com/en/image/navi_main/s2-4on.gif");
		sub15 = newImage("http://fccint.com/en/image/navi_main/s2-5on.gif");
		sub16 = newImage("http://fccint.com/en/image/navi_main/s2-6on.gif");
		button1 = newImage("http://fccint.com/en/image/call_back_on.gif");
		button2 = newImage("http://fccint.com/en/image/contact_form_on.gif");
		preloadFlag = true;
	}
}