// JavaScript Document
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) {
		home_over = newImage("/images/home-over.gif");
		products_over = newImage("/images/products-over.gif");
		webservice_over = newImage("/images/webservice-over.gif");
		price_over = newImage("/images/price-over.gif");
		inquiry_over = newImage("/images/inquiry-over.gif");
		company_over = newImage("/images/company-over.gif");
		preloadFlag = true;
	}
}


function addEvent(elm,listener,func)
{
	try {
		elm.addEventListener(listener, func, false);
	} catch(e) {
		elm.attachEvent("on"+listener, func);
	}
}