function copyaddress()
{
	if(document.mainform.Sale_Address.checked)
	{
		//If checked then copy address to fields
		document.mainform.Sale_Address_House_No.value = document.mainform.Address_House_No.value;
		document.mainform.Sale_Address_line2.value = document.mainform.Contact_Address_line1.value;
		document.mainform.Sale_Address_line3.value = document.mainform.Contact_Address_line2.value;
		document.mainform.Sale_Address_city.value = document.mainform.Address_city.value;
		document.mainform.Sale_Address_postcode.value = document.mainform.Address_postcode.value;
		document.mainform.Sale_Country.value = document.mainform.Country.value;
		alert("The above address has been copied");
	}
	else
	{
		//If unchecked then clear fields
		document.mainform.Sale_Address_House_No.value = '';
		document.mainform.Sale_Address_line2.value = '';
		document.mainform.Sale_Address_line3.value = '';
		document.mainform.Sale_Address_city.value = '';
		document.mainform.Sale_Address_postcode.value = '';
		document.mainform.Sale_Country.value = '';
		alert("Please complete the property address details");
	}
}