// JavaScript Document
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) {
		topmen_01_over = newImage("images/topmen_01-over.gif");
		topmen_02_over = newImage("images/topmen_02-over.gif");
		topmen_03_over = newImage("images/topmen_03-over.gif");
		mainmen_00_over = newImage("images/mainmen_00-over.gif");
		mainmen_01_over = newImage("images/mainmen_01-over.gif");
		mainmen_02_over = newImage("images/mainmen_02-over.gif");
		mainmen_03_over = newImage("images/mainmen_03-over.gif");
		mainmen_04_over = newImage("images/mainmen_04-over.gif");
		mainmen_05_over = newImage("images/mainmen_05-over.gif");
		mainmen_06_over = newImage("images/mainmen_06-over.gif");
		mainmen_07_over = newImage("images/mainmen_07-over.gif");
		submen1_01_over = newImage("images/submen1_01-over.gif");
		submen1_02_over = newImage("images/submen1_02-over.gif");
		submen1_03_over = newImage("images/submen1_03-over.gif");
		submen1_04_over = newImage("images/submen1_04-over.gif");
		submen1_05_over = newImage("images/submen1_05-over.gif");
		submen2_01_over = newImage("images/submen2_01-over.gif");
		submen2_02_over = newImage("images/submen2_02-over.gif");
		submen2_03_over = newImage("images/submen2_03-over.gif");
		submen3_01_over = newImage("images/submen3_01-over.gif");
		submen3_02_over = newImage("images/submen3_02-over.gif");
		submen3_03_over = newImage("images/submen3_03-over.gif");
		submen3_04_over = newImage("images/submen3_04-over.gif");
		submen3_05_over = newImage("images/submen3_05-over.gif");
		submen3_06_over = newImage("images/submen3_06-over.gif");
		preloadFlag = true;
	}
}