//JavaScript Banner Ad Rotator version 2.1 - last modified 16 November 2000
//Obtained from http://www.brettb.com/js_banner_ad_rotator.asp

//User defined variables - change these variables to alter the behaviour of the script
var DisplayInterval = 5; //Number of seconds to wait before the next image is displayed
var TargetFrame = ""; //Name of the frame to open the hyperlink into

//Internal variables (do not change these unless you know what you are doing)
var DisplayInterval = DisplayInterval * 1000;
var IsValidBrowser = false;
var BannerAdCode = 0;


if (TargetFrame == '') {
	var FramesObject = null;
} else {
	var FramesObject = eval('parent.' + TargetFrame);
}

//Function runs when this page has been loaded and does the following:
//1. Determine the browser name and version  (since the script will only work on Netscape 3+ and Internet Explorer 4+).
//2. Start the timer object that will periodically change the image displayed by the Banner Ad.
//3. Preload the images used by the Banner Ad rotator script
function InitialiseBannerAdRotator() {
	//Determine the browser name and version
	//The script will only work on Netscape 3+ and Internet Explorer 4+
	var BrowserType = navigator.appName;
	var BrowserVersion = parseInt(navigator.appVersion);
	/*
	if (BrowserType == "Netscape" && (BrowserVersion >= 3)) {
		IsValidBrowser = true;
	}
	
	if (BrowserType == "Microsoft Internet Explorer" && (BrowserVersion >= 4)) {
		IsValidBrowser = true;
	}
	*/
	IsValidBrowser = true;
	
	if (IsValidBrowser) {
		TimerObject = setTimeout("ChangeImage()", DisplayInterval);
		BannerAdCode = 0;
		
		for (i = 0; i < NumberOfImages; i++) {
		BannerAdImages[i] = new Image();
		BannerAdImages[i].src = ' ' + ImageFileNames[i];
		//BannerAdImages[i] = ' ' + ImageFileNames[i];
		}		
	}
}

//Function to change the src of the Banner Ad image
function ChangeImage() {
	if (IsValidBrowser) {
	BannerAdCode = BannerAdCode + 1;
	
	if (BannerAdCode == NumberOfImages) {
	BannerAdCode = 0;
	}
	
	window.document.bannerad.src = BannerAdImages[BannerAdCode].src;	
	var myOldString = ' ' + ImageFileNames[i];
	myOldString = myOldString.replace("/loadFile.php?fn=/content/th", "");
	myOldString = myOldString.replace("/", "");
	myOldString = myOldString.replace(".jpg", "");		
	window.document.bannerad.title = myOldString;
	TimerObject = setTimeout("ChangeImage()", DisplayInterval);
    var rTxt = document.getElementById("rTxt");	
	rTxt.innerHTML=ImageURLNames[BannerAdCode];
	}
}

//Function to redirect the browser window/frame to a new location,
//depending on which image is currently being displayed by the Banner Ad.
//If Banner Ad is being displayed on an old browser then the DefaultURL is displayed
function ChangePage() {
	if (IsValidBrowser) {	
		if (TargetFrame != '' && (FramesObject)) {
			FramesObject.location.href = ImageURLs[BannerAdCode];
		} 
		else {
			document.location = ImageURLs[BannerAdCode];
		}
		
	} 
	else if (!IsValidBrowser) {
		document.location = DefaultURL;
	}
}