function getCookieValue(cookieName)
	{
   var cookieValue = document.cookie;
   var cookieStartsAt = cookieValue.indexOf(" " + cookieName + "=");

   if (cookieStartsAt == -1)
   {
      cookieStartsAt = cookieValue.indexOf(cookieName + "=");
   }

   if (cookieStartsAt == -1)
   {
      cookieValue = null;
   }
   else
   {
      cookieStartsAt = cookieValue.indexOf("=", cookieStartsAt) + 1;
      var cookieEndsAt = cookieValue.indexOf(";", cookieStartsAt);
      if (cookieEndsAt == -1)
      {
         cookieEndsAt = cookieValue.length;
      }
      cookieValue = unescape(cookieValue.substring(cookieStartsAt,
         cookieEndsAt));
   }

   return cookieValue;
	}

function setCookie(cookieName, cookieValue)
	{
   cookieValue = escape(cookieValue);

   var nowDate = new Date();
   nowDate.setMonth(nowDate.getMonth() + 6);
   cookieExpires = nowDate.toGMTString();

   document.cookie = cookieName + "=" + cookieValue + 
      ";expires=" + cookieExpires;
	}

function deleteCookie(cookieName)
	{
   document.cookie = cookieName + "=" + ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
	}

function cookiesOff()
	{
   setCookie("testCookie", "test");
   if (getCookieValue("testCookie") == null)
		{
		return true;
		}
		else
		{
		return false;
		}
	}

function getNextImage(cookieName, maxImages)
	{
		if (cookiesOff() == true)
		{
			return 1;
		}
		else
		{
	var imageNumber = 0;
	if (getCookieValue(cookieName) == null)
		{
		imageNumber = 1;
		}
	else
		{
		imageNumber = imageNumber + parseInt(getCookieValue(cookieName));
		}
	if (imageNumber >= maxImages)
		{
		imageNumber = 1;
		}
	else
		{
		imageNumber = imageNumber + 1;
		}
	setCookie(cookieName, imageNumber);
	return imageNumber;
		}
	}