function submitNewsletter(){
	    if ($('#newsletter_email').val().indexOf(',') >= 0) {//check for commas
			$('.success, .warning').remove();
			$('#newsletter_form').before('<p class="warning" style="display:none">Invalid email address</p>');
			$('#newsletter_form').siblings('.warning').fadeIn();
			
		} else {
			
			$.ajax({
				type: 'post',
				url: 'index.php?route=module/newsletter/callback',
				dataType: 'html',
				data: $('#newsletter_form :input'),
				success: function (response) {
					$('.success, .warning').remove();
					if (response=='success'){
						$('#newsletter_form').before('<p class="success" style="display:none">Thanks, your details have been added</p>');
						$('#newsletter_form').siblings('.success').fadeIn();
						$('#newsletter_form :input').val('');
						}
					else if (response=='exists'){
						$('#newsletter_form').before('<p class="warning" style="display:none">This email is already subscribed</p>');
						$('#newsletter_form').siblings('.warning').fadeIn();
						}
					else {
						$('#newsletter_form').before('<p class="warning" style="display:none">Please complete all the fields</p>');
						$('#newsletter_form').siblings('.warning').fadeIn();
						}
				}	
				});
			
		}

}