function check() {

	if (document.inputform.termsandcons.checked == false) {
		alert ("Please accept the Terms & Conditions");
		return false;
	}

	if(document.inputform.firstname.value == "" || document.inputform.lastname.value == "") {
		alert ("'Firstname' and 'Lastname' are mandatory fields.");
		return false;
	}

	if(document.inputform.addr1.value == "" || document.inputform.addrpost.value == "") {
		alert ("Please enter a valid address.");
		return false;
	}

	return true;
}

function removereg() {

	document.inputform.regoptions[0].checked = false;
	document.inputform.regoptions[1].checked = false;
	document.inputform.regoptions[2].checked = false;
	document.inputform.regoptions[0].disabled = true;
	document.inputform.regoptions[1].disabled = true;
	document.inputform.regoptions[2].disabled = true;

}

function enablereg() {

	document.inputform.regoptions[0].disabled = false;
	document.inputform.regoptions[1].disabled = false;
	document.inputform.regoptions[2].disabled = false;

}

function oatprobedis() {

	document.inputform.oatprobeto[0].disabled = true;
	document.inputform.oatprobeto[1].disabled = true;
	document.inputform.oatprobeto[2].disabled = true;
	document.inputform.oatprobeto[0].checked = false;
	document.inputform.oatprobeto[1].checked = false;
	document.inputform.oatprobeto[2].checked = false;
}

function oatprobeena() {

	document.inputform.oatprobeto[0].disabled = false;
	document.inputform.oatprobeto[1].disabled = false;
	document.inputform.oatprobeto[2].disabled = false;

}