function CartOn(ImgNum)
{
	theImg = 'cartImage' + ImgNum;
	document.images[theImg].src='images/Cart_flip.gif';
}


function CartOff(ImgNum)
{
	document.images[theImg].src='images/Cart.gif';
}


function validateSubscription()
{
	subscription = 0;
	Qty=0;
	
	for (i=0; i<6; i++)
	{
		if(document.SubscriptionForm.productId[i].checked == true)
		{
			subscription = 1;	
		}
	}
	
	if(subscription)
	{
		if((document.SubscriptionForm.renewal[0].checked == false) && (document.SubscriptionForm.renewal[1].checked == false))
		{
			alert("Please specify if this is a renewal subscription.");
			return false;
		}
	}
	
	if((!subscription) && (document.SubscriptionForm.productId[6].checked == false) && (document.SubscriptionForm.productId[7].checked == false) && (document.SubscriptionForm.productId[8].checked == false))
	{
		alert("Please choose the type of subscription you wish to order.");
		return false;
	}
	
	return true;
}


function InfoWindow(thePage)
{
win = window.open(thePage, "","height=300,width=350,top=225,left=225,scrollbars=no,resizable=no");
}