Кнопка у нас вот
<input id="slide" class="slide" type="image" src="https://psv4.vk.me/c414924/u331653025/docs/0ca38f6b8139/slid.png?extra=xCAy-_y2OTFVdecmOKN5GnsSQniOg8mc7_75hsVJt6jCZJu5MI_Mrl_LgQY-aqYD1Mqr036lAix_DIm72cH0tDCxdD8v4uiClKcO6oA1OkM148fP"width="2%" height="2%">