function nl_newsletter_submit( form ){
	jQuery( "form#nl_newsletter .invalid" ).removeClass( 'invalid' );
	jQuery( "form#nl_newsletter p").slideUp( 'fast', function(){ jQuery(this).remove(); });
	jQuery .ajax({
		type: "POST",
		dataType: "json",
		url: form.action,
		data: {	"email": 		jQuery( "input#nl_newsletter_email" ).val(),
				"email_verify": jQuery( "input#nl_newsletter_email_verify" ).val(),
				"region": 		jQuery( "select#nl_newsletter_region" ).val(),
				"ajax":			'1' }, 
		success: function( json ){
			if( json.success ){
				jQuery( "form#nl_newsletter").prepend('<p style="display:none;">'+json.data.message+'</p>');
				jQuery( "form#nl_newsletter p").slideDown('fast');
				jQuery( "form#nl_newsletter fieldset" ).slideUp( 'fast' );
				jQuery( "form#nl_newsletter input.submit" ).fadeOut( 'fast' );
			}else{
				if( json.data.message ){
					jQuery( "form#nl_newsletter").prepend('<p style="display:none;">'+json.data.message+'</p>');
					jQuery( "form#nl_newsletter p").slideDown('fast');
				}
				for( field in json.data.invalid_fields ){
					jQuery( "form#nl_newsletter [@name="+json.data.invalid_fields[field]+"]" ).addClass( 'invalid' );
				}
			}
		},
		error: function( object, msg, exception ){
			alert( 'Sorry, there was an error sending your data, please try again later' );
		}
	});
	return false;	
}

/**
 * Alter DOM when ready.. add hook on newsletter form
 */
if(typeof jQuery != "undefined"){
	jQuery(document).ready( function() {
		jQuery("form#nl_newsletter").submit( function() { return nl_newsletter_submit(this) } );
	} );
}