Turn off comebacker (cb) at any click on the page. jQuery is required.

gistfile1.js

var cb_to_turn_off_id = 123; // вставить ID камбекера который нужно отключить
var cb_turned_off = false;
$(document).ready(function(){
	$('*').click(function(){
		if ('undefined' != typeof(comebacker) && false == cb_turned_off) {
			comebacker['settings']['launch'] = true;
			comebacker_create_cookie('comebacker_was_shown[' + cb_to_turn_off_id + ']', 1, 365);
			cb_turned_off = true;
		}
	});
});