function checkOrder() {
	var emailAddress = document.orderForm.orderEmail.value;	
	var isValid = checkemail(emailAddress);
	if (isValid == true) {
		document.orderForm.submit();
	} else {
		alert('Tarkista virheellinen sähköpostiosoite.');
		document.orderForm.orderEmail.focus();
	}
}

function checkemail(emailAddress){
	var str=emailAddress;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(str))
		testresults=true
	else{
		testresults=false
	}
	return (testresults)
}