function showlayer(layer, showlayer, hidelayer){
var myLayer = document.getElementById(layer).style.display;
if(myLayer=="none"){
document.getElementById(layer).style.display="block";
} else {
document.getElementById(layer).style.display="none";
}
document.getElementById(showlayer).style.display="block";
document.getElementById(hidelayer).style.display="none";
}

function showShipping(){
	var shippingType = document.myform.selectShipping.value;
	if (shippingType == "canadapost")
	{
		document.getElementById("canadapost").style.display="block";
		document.getElementById("UPS").style.display="none";
	}
	if (shippingType == "UPS")
	{
		document.getElementById("UPS").style.display="block";
		document.getElementById("canadapost").style.display="none";
	}
	if (shippingType == "")
	{
		document.getElementById("UPS").style.display="none";
		document.getElementById("canadapost").style.display="none";
	}
}