$(document).ready(function(){
$().piroBox({
      my_speed: 300, //animation speed
      bg_alpha: 0.5, //background opacity
      slideShow : 'true', // true == slideshow on, false == slideshow off
      slideSpeed : 3, //slideshow 
      close_all : '.piro_close' // add class .piro_overlay(with comma)if you want overlay click close piroBox
      });
});