function checkEmailForm(email) {
		var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/;
		if (!regex.test(email)) {
			alert("Please enter your email address.");
			return false;	
		} else {
			return true;	
		}
	}