//User defined variables - change these variables to alter the behaviour of the script
	var ImageFolder = "images"; //Folder name containing the images
	var ImageFileNames = new Array('l24publication.gif', 'estrosteppublication.gif'); //List of images to use
	var ImageURLs = new Array('http://www.loestrin24.com', 'http://www.wcrx.com/products/estrostep/index.php'); //List of hyperlinks associated with the list of images
	var DefaultURL = 'http://www.wcrx.com/products/estrostep/index.php'; //Default hyperlink for the Banner Ad
	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 IsValidBrowser = false;
	var BannerAdCode = 0;
	var BannerAdImages = new Array(NumberOfImages);
	var DisplayInterval = DisplayInterval * 1000;
	var NumberOfImages = ImageFileNames.length;

	//Add a trailing forward slash to the ImageFolder variable if it does not already have one
	if (ImageFolder.substr(ImageFolder.length - 1, ImageFolder.length) != "/" && ImageFolder != "") 
	{
		ImageFolder += "/banner/";
	}

	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;
		}

		if (IsValidBrowser) 
		{
			TimerObject = setTimeout("ChangeImage()", DisplayInterval);
			BannerAdCode = 0;

			for (i = 0; i < NumberOfImages; i++) 
			{
				BannerAdImages[i] = new Image();
				BannerAdImages[i].src = ' ' + ImageFolder + 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;
		TimerObject = setTimeout("ChangeImage()", DisplayInterval);
		}
	}

	//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 
		{
			window.open(ImageURLs[BannerAdCode]);
//			document.location = ImageURLs[BannerAdCode];
		}

		} 
		else if (!IsValidBrowser) 
		{
			document.location = DefaultURL;
		}
	}