var rotationID = 0;
n = 1;
time = 3500;
newImgs = new Array();
var rolloverAd = ['/ad_homepage/bt1.jpg', '/ad_homepage/bt2.jpg', '/ad_homepage/bt3.jpg', '/ad_homepage/bt4.jpg', '/ad_homepage/bt5.jpg', 
					'/ad_homepage/bt1o.jpg', '/ad_homepage/bt2o.jpg', '/ad_homepage/bt3o.jpg', '/ad_homepage/bt4o.jpg', '/ad_homepage/bt5o.jpg',
					'/ad_homepage/ad1.jpg', '/ad_homepage/ad2.jpg', '/ad_homepage/ad3.jpg', '/ad_homepage/ad4.jpg', '/ad_homepage/ad5.jpg'];

for(i = 0; i < 15; i++)
	newImgs[i] = new Image();

for(i = 0; i < 15; i++)
	newImgs[i].src = rolloverAd[i];

function imgSwap(imgID, imgSrc)
{
	document.getElementById(imgID).setAttribute("src", imgSrc);
}

function btnRotate(num, status)
{
	suffix = num;
	if(status == "on")
	{
		suffix += "o";
		clearInterval(rotationID);
	}
	else if(status == "off")
	{
		rotationID = setInterval(animate, time);
	}

	imgSwap("btn" + num, "/ad_homepage/bt" + suffix + ".jpg");
}

function imgRotate(num)
{
	imgSwap("img_lg", "/ad_homepage/ad" + num + ".jpg");
	
	if(num == 1)
		document.getElementById("rotateLink").href = "http://www.sewingmachinesplus.com/Singer-Quantum-Stylist-9960.php";
	else if(num == 2)
		document.getElementById("rotateLink").href = "http://www.sewingmachinesplus.com/quilting18x8-top-brand.php";
	else if(num == 3)
		document.getElementById("rotateLink").href = "http://www.sewingmachinesplus.com/HandiQuilter-Sweet-Sixteen.php";
	else if(num == 4)
		document.getElementById("rotateLink").href = "http://www.sewingmachinesplus.com/hzl-f600-asgsm.php";
	else if(num == 5)
		document.getElementById("rotateLink").href = "http://www.sewingmachinesplus.com/miele.php";

}

function animate()
{
	imgRotate(n++);
	if(n > 5) { n = 1; }
}

function setNum(x)
{
	n = x;
}

function startBanner()
{
	rotationID = setInterval(animate, time);
}