$(document).ready(function() {
	$('#newsletter_signup form').submit(function() {
		var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
		var email = $(this).find('#email').val();
		var emailValid = email != '' && filter.test(email);
	
		if(!emailValid) {
			alert("Please enter a valid email in order to subscribe to our newsletter.");
		}
	
		return emailValid;
	});
});