// determining the browser
isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;

// begin timer imageswap
var SideImageArray = new Array(6)
SideImageArray[0] = "images/img02.jpg";
SideImageArray[1] = "images/img03.jpg";
SideImageArray[2] = "images/img04.jpg";
SideImageArray[3] = "images/img05.jpg";
SideImageArray[4] = "images/img06.jpg";
SideImageArray[5] = "images/img01.jpg";

var running = false;
var endTime = null;
var timerID = null;

function startTimer()
{
	running = true;
	now = new Date();
	now = now.getTime();
	endTime = now + (90 * 60 * 1);
	showCountDown();
}

function showCountDown()
{
	var now = new Date();
	if(endTime - now <=0)
	{
			num = document.form1.hidNum.value;
			if(num <= 5)
			{
				var ImgName = SideImageArray[num];
				if(!isNS4)
				{
					//document.frmImageSwap.ImgSwitch.src = ImgName;
				}
				else
				{
					//document.BuildingPic.document.ImgSwitch.src = ImgName;
				}
				document.form1.hidNum.value = parseInt(num) + 1;
				if(num == 5)
				{
					//document.form1.hidNum.value = 0;
				}
			}
			
		startTimer();	
	}
	else
	{
		if(running)
		{
			timerID = setTimeout("showCountDown()",1000);
		}
	}
}

startTimer();

function stopTimer()
{
	clearTimeout(timerID);
	running = false;
	document.form1.hidNum.value = 0;
	//document.frmImageSwap.timerDisplay.value = "0:00";
}