// Java Document

	function checkform (purchase)
	{
		if (purchase.name.value == "") {
			purchase.name.value = "Please enter your full name";
			return false;
		}
		
		if (purchase.name.value == "Please enter your full name") {
			purchase.name.value = "Please enter your full name";
			return false;
		}
		
		if (purchase.address.value == "") {
			purchase.address.value = "Please enter your address";
			return false;
		}
		
		if (purchase.address.value == "Please enter your address") {
			purchase.address.value = "Please enter your address";
			return false;
		}
		
		if (purchase.postcode.value == "") {
			purchase.postcode.value = "Please enter your postcode";
			return false;
		}
		
		if (purchase.postcode.value == "Please enter your postcode") {
			purchase.postcode.value = "Please enter your postcode";
			return false;
		}
		
		if (purchase.tel.value == "") {
			purchase.tel.value = "Please enter your telephone number";
			return false;
		}
		
		if (purchase.tel.value == "Please enter your telephone number") {
			purchase.tel.value = "Please enter your telephone number";
			return false;
		}
		
		if (purchase.email.value == "") {
			purchase.email.value = "Please enter your email address";
			return false;
		}
		
		if (purchase.email.value == "Please enter your email address") {
			purchase.email.value = "Please enter your email address";
			return false;
		}
		
		return true;
	}