function checkFields() {
	var why = "";

	why += checkTextField('firstname','First Name','yes');
	why += checkTextField('lastname','Last Name','yes');
	why += checkMemberNum('membernum');
	why += checkEmail('email');
	
	why += checkTextField('ref1firstname','Friend 1 First Name','yes');
	why += checkTextField('ref1lastname','Friend 1 Last Name','yes');
	why += checkPhone('ref1areacode','ref1phone1','ref1phone2','Friend 1','yes');
	why += checkOtherEmail('ref1email','Friend 1','yes');
	
	why += checkTextField('ref2firstname','Friend 2 First Name','no');
	why += checkTextField('ref2lastname','Friend 2 Last Name','no');
	why += checkPhone('ref2areacode','ref2phone1','ref2phone2','Friend 2','no');
	why += checkOtherEmail('ref2email','Friend 2','no');

	return why;
}