function preloadImages() {
if (document.images)
	{
	var vying_roll = new Image
		vying_roll.src = "images/btn_vyingforcapital_over.gif"
	var groundfloor_roll = new Image
		groundfloor_roll.src = "images/btn_groundfloor_over.gif"
	var littleblood_roll = new Image
		littleblood_roll.src = "images/btn_littleblood_over.gif"
	var playinggame_roll = new Image
		playinggame_roll.src = "images/btn_playinggame_over.gif"
	var tilting_roll = new Image
		tilting_roll.src = "images/btn_tilting_over.gif"
	var moved_roll = new Image
		moved_roll.src = "images/btn_moved_over.gif"
	var arrow_roll = new Image
		arrow_roll.src = "images/btn_arrow_over.gif"
	var next_roll = new Image
		next_roll.src = "images/btn_next_over.gif"
	var previous_roll = new Image
		previous_roll.src = "images/btn_previous_over.gif"
	var back_roll = new Image
		back_roll.src = "images/btn_back_over.gif"
	}
}

function changeImages(sName,sImage)
	{
	if (document.images)
		{
		document.images[sName].src = sImage
		}
	}

function openWindow(theURL,winName,features)
	{
	window.open(theURL,winName,features).focus();
	}

function closeWindow()
	{
	window.close();
	}

if (document.layers)
	{
	origWidth = innerWidth;
	origHeight = innerHeight;
	}
function reloadPage()
	{
	if (innerWidth != origWidth || innerHeight != origHeight)
	location.reload();
	}
if (document.layers)
	onresize=reloadPage;
	
function goHistory()
	{
	history.back();
	}

bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if      (bName == "Netscape" && bVer <= 3) ver="showButton";
else if (bName == "Netscape" && bVer >= 4) ver="showText";

else if (bName == "Microsoft Internet Explorer" && bVer <= 3) ver="showButton";
else if (bName == "Microsoft Internet Explorer" && bVer >= 4) ver="showText";

else if (bName == "Opera" && bVer <= 3) ver="showButton";
else if (bName == "Opera" && bVer >= 4) ver="showText";
	
else if (bName == "Mozilla" && bVer <= 3) ver="showButton";
else if (bName == "Mozilla" && bVer >= 4) ver="showText";

else
	{ver="showButton";}