public function do_license_key_javascript() {
			?>
			<script>
				jQuery(document).ready(function ($) {
					$( '.tribe-field-license_key' ).each( function() {
						var $el = $( this );
						var $field = $el.find( 'input' );

						if ( '' === $.trim( $field.val() ) ) {
							$el.find( '.license-test-results' ).hide();
						}
					} );

					$('#tribe-field-<?php echo esc_attr( $this->pue_install_key ); ?>').change(function () {
						<?php echo sanitize_html_class( $this->pue_install_key ); ?>_validateKey();
					});
					<?php echo sanitize_html_class( $this->pue_install_key ); ?>_validateKey();
				});

				function <?php echo sanitize_html_class( $this->pue_install_key ); ?>_validateKey() {
					var this_id       = '#tribe-field-<?php echo esc_attr( $this->pue_install_key ); ?>';
					var $validity_msg = jQuery(this_id + ' .key-validity');

					if (jQuery(this_id + ' input').val() != '') {
						jQuery( this_id + ' .license-test-results' ).show();
						jQuery(this_id + ' .tooltip').hide();
						jQuery(this_id + ' .ajax-loading-license').show();
						$validity_msg.hide();

						// Strip whitespace from key
						var <?php echo sanitize_html_class( $this->pue_install_key ); ?>_license_key = jQuery(this_id + ' input').val().replace(/^\s+|\s+$/g, "");
						jQuery(this_id + ' input').val(<?php echo sanitize_html_class( $this->pue_install_key ); ?>_license_key);

						var data = {
							action: 'pue-validate-key_<?php echo esc_attr( $this->get_slug() ); ?>',
							key: <?php echo sanitize_html_class( $this->pue_install_key ); ?>_license_key,
							_wpnonce: '<?php echo esc_attr( wp_create_nonce( 'pue-validate-key_' . $this->get_slug() ) ); ?>'
						};
						jQuery.post(ajaxurl, data, function (response) {
							var data          = jQuery.parseJSON(response);

							jQuery(this_id + ' .ajax-loading-license').hide();
							$validity_msg.show();
							$validity_msg.html(data.message);

							switch ( data.status ) {
								case 1: $validity_msg.addClass( 'valid-key' ).removeClass( 'invalid-key' ); break;
								case 2: $validity_msg.addClass( 'valid-key service-msg' ); break;
								default: $validity_msg.addClass( 'invalid-key' ).removeClass( 'valid-key' ); break;
							}
						});
					}
				}
			</script>
			<?php
		}