function check_usebillingaddress_click()
{
	if(isChecked())
	{
		grayItem("AddressControl_txtShippingFirstName");
		grayItem("AddressControl_txtShippingLastName");
		grayItem("AddressControl_txtShippingCompany");
		grayItem("AddressControl_txtShippingAddress1");
		grayItem("AddressControl_txtShippingAddress2");
		grayItem("AddressControl_txtShippingCity");
		grayItem("AddressControl_txtShippingRegion");
		grayItem("AddressControl_txtShippingPostalCode");
		grayItem("AddressControl_txtShippingCountry");
		grayItem("AddressControl_txtShippingPhone1");
	}
	else
	{
		showItem("AddressControl_txtShippingFirstName");
		showItem("AddressControl_txtShippingLastName");
		showItem("AddressControl_txtShippingCompany");
		showItem("AddressControl_txtShippingAddress1");
		showItem("AddressControl_txtShippingAddress2");
		showItem("AddressControl_txtShippingCity");
		showItem("AddressControl_txtShippingRegion");
		showItem("AddressControl_txtShippingPostalCode");
		showItem("AddressControl_txtShippingCountry");
		showItem("AddressControl_txtShippingPhone1");
	}
}

function grayItem(id1)
{
	try{
			var o1 = document.getElementById(id1);
			o1.readOnly = true;
			o1.style.background = "#999999";
		}
	catch(e){}
}
function showItem(id1)
{
	try{
		var o1 = document.getElementById(id1);
			o1.readOnly = false;
		o1.style.background = "";
	}
	catch(e){}
}
function isChecked()
{
	try{
		if(document.getElementById("AddressControl_chkBillingAsShipping").checked)
		return true;
	}
	catch(e){}
	return false;
}