// Copyright 2006-2007 javascript-array.com
	var timeout	= 500;
	var closetimer	= 0;
	var ddmenuitem	= 0;

// open hidden layer
	function mopen(id)
	{	
		// cancel close timer
		mcancelclosetime();

		// close old layer
		if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

		// get new layer and show it
		ddmenuitem = document.getElementById(id);
		if(!(ddmenuitem==null)) {
			ddmenuitem.style.visibility = 'visible';
		}

	}
	
	// close showed layer
	function mclose() {
		if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	}

	// go close timer
	function mclosetime()
	{
		closetimer = window.setTimeout(mclose, timeout);
	}

	// cancel close timer
	function mcancelclosetime()
	{
		if(closetimer)
		{
			window.clearTimeout(closetimer);
			closetimer = null;
		}
	}

	// close layer when click-out
	document.onclick = mclose; 
	

//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 ImageFolder = "http:/.mashout.org/images/ads"; //Folder name containing the images
var ImageFileNames = new Array('northernbrewer_banner.gif', 'blichmann_banner.gif','fivestar_banner.gif',
							   'hopunion_banner.gif', 'midwest_banner.gif', 'wyeast_banner.gif'); //List of images to use
var ImageURLs = new Array('','','','','',''); //List of hyperlinks associated with the list of images
var DefaultURL = 'http://www.mashout.org'; //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;
var CurrentImageIndex = 0;

//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 += "/";
}

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) {
				var randomNumber=Math.floor(Math.random()*BannerAdImages.length);
				while (randomNumber == CurrentImageIndex) {
					randomNumber=Math.floor(Math.random()*BannerAdImages.length);
				}
				CurrentImageIndex = randomNumber;
	window.document.bannerad.src = BannerAdImages[randomNumber].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 {
	  document.location = ImageURLs[BannerAdCode];
	}
  } else if (!IsValidBrowser) {
	document.location = DefaultURL;
  }
}