Carousel slider not moving automatically

[smartshovon]

I have 2 slider in my website. 2nd slider moving automatically but 1st slider (Carousel slider) not moving automatically, it's moving manually. i want it's moving automatically. I use wordpress. and theme use "periodic". my site http://www.dewdropzone.com. How I can do it? this is Carousel code in style.css .this slider name of my theme Masthead Carousel Slider.