// Homepage

userAgent = window.navigator.userAgent;

browserVers = parseInt(userAgent.charAt(userAgent.indexOf("./")+1),10);

function newImage(arg) {

	if (document.images) {

		rslt = new Image();

		rslt.src = arg;

		return rslt;

	}

}



function findElement(n,ly) {

	if (browserVers < 4)		return document[n];

	var curDoc = ly ? ly.document : document;

	var elem = curDoc[n];

	if (!elem) {

		for (var i=0;i<curDoc.layers.length;i++) {

			elem = findElement(n,curDoc.layers[i]);

			if (elem) return elem;

		}

	}

	return elem;

}



function changeImages() {

	if (document.images && (preloadFlag == true)) {

		var img;

		for (var i=0; i<changeImages.arguments.length; i+=2) {

			img = null;

			if (document.layers) {

				img = findElement(changeImages.arguments[i],0);

			}

			else {

				img = document.images[changeImages.arguments[i]];

			}

			if (img) {

				img.src = changeImages.arguments[i+1];

			}

		}

	}

}



var preloadFlag = false;

function preloadImages() {

	if (document.images) {

		homepage_02 = newImage("/images/homepage/homepage_02.jpg");

		homepage_03 = newImage("/images/homepage/homepage_03.jpg");

		homepage_04 = newImage("/images/homepage/homepage_04.jpg");

		homepage_b_01b = newImage("/images/homepage/homepage_b_01b.gif");

		homepage_b_02b = newImage("/images/homepage/homepage_b_02b.gif");

		homepage_b_03b = newImage("/images/homepage/homepage_b_03b.gif");

		preloadFlag = true;

	}

}