// Check form for email.
function checkform() {
	var f = document.form.email.value;
	
	if(f == "Ange din e-postadress här" || f == "" || !validateEmail(f)) {
		alert("Du måste ange en giltig e-postadress!");
		return false;
	} else {
		return true;
	}
}

function validateEmail(email) {
	var re = /.*\@.*\..*/;
	return re.test(email);
}