Using a filter to change the text displayed in place of the ticket selector for sold out events

example.php

<?php //Please do not include the opening PHP tag if you already have one 

function tw_custom_sold_out_message( $original_text, $event ) {
	return '<p class="no-ticket-selector-msg clear-float">Sorry, ' . $event->name() . 'is currently sold out.<br/>Please check back again later.</p>';
}
add_filter('FHEE__EE_Ticket_Selector__display_ticket_selector_submit__sold_out_msg', 'tw_custom_sold_out_message', 10, 2 );

example2.php

<?php //Please do not include the opening PHP tag if you already have one 

function tw_custom_sold_out_message( $original_text ) {
	return 'Sold&nbsp;Out';
}
add_filter('FHEE__ticket_selector_chart_template__ticket_sold_out_msg', 'tw_custom_sold_out_text');