function clearQuotes(theForm) {
	for (i=0;i<theForm.elements.length;i++) {
		if (theForm.elements[i].value) {
			theForm.elements[i].value = theForm.elements[i].value.replace(/'/gi,"`");
		}
	}
}

function checkEmail(theEmail) {
	if (theEmail.indexOf('.')==-1) return false;
	if (theEmail.indexOf('@')==-1) return false;
	if (theEmail.length<6) return false;
	return true;
}

function checkCompetition() {
	theForm=document.CompetitionForm;
	clearQuotes(theForm);
	
	if (theForm.fname.value.length<1) {alert("Please enter your first name.");return false;}
	if (theForm.lname.value.length<1) {alert("Please enter your last name.");return false;}
	if (theForm.email.value.length<1) {alert("Please enter your email address.");return false;}
	if (checkEmail(theForm.email.value)==false) {alert("The email address you have entered does not seem to be valid.");return false;}

	return true;
}

function checkSubscription() {
	theForm=document.SubscriptionForm;
	clearQuotes(theForm);
	
	if (theForm.fname.value.length<1) {alert("Please enter your first name.");return false;}
	if (theForm.lname.value.length<1) {alert("Please enter your last name.");return false;}
	if (theForm.email.value.length<1) {alert("Please enter your email address.");return false;}
	if (checkEmail(theForm.email.value)==false) {alert("The email address you have entered does not seem to be valid.");return false;}

	return true;
}

function checkEnquiry() {
	theForm=document.EnquiryForm;
	clearQuotes(theForm);
	
	if (theForm.fname.value.length<1) {alert("Please enter your first name.");return false;}
	if (theForm.lname.value.length<1) {alert("Please enter your last name.");return false;}
	if (theForm.email.value.length<1) {alert("Please enter your email address.");return false;}
	if (checkEmail(theForm.email.value)==false) {alert("The email address you have entered does not seem to be valid.");return false;}

	if (theForm.subject.value.length<1) {alert("Please enter a subject for your enquiry.");return false;}
	if (theForm.message.value.length<1) {alert("Please enter a message.");return false;}

	return true;
}

function checkMember() {
	theForm=document.MemberForm;
	clearQuotes(theForm);
	
	if (theForm.fname.value.length<1) {alert("Please enter your first name.");return false;}
	if (theForm.lname.value.length<1) {alert("Please enter your last name.");return false;}
	if (theForm.email.value.length<1) {alert("Please enter your email address.");return false;}
	if (checkEmail(theForm.email.value)==false) {alert("The email address you have entered does not seem to be valid.");return false;}

	if (theForm.password.value.length<1) {alert("Please enter a password.");return false;}
	if (theForm.password2.value.length<1) {alert("Please enter your password again.");return false;}
	if (theForm.password.value != theForm.password2.value) {alert("Your passwords do not match. Please retype them.");return false;}

	return true;
}