jquery 图片滚动特效按钮控制图片自动上下滚动与左右滚动

<script type="text/javascript" src="http://www.jsfoot.com/skin/js/jquery.js"></script>
<script type="text/javascript" src="js/slider.js"></script>
<script type="text/javascript">
$(function(){
//默认状态下左右滚动
$("#s1").xslider({
unitdisplayed:4,
movelength:1,
unitlen:176,
autoscroll:3000
});

//设置上下滚动
$("#s2").xslider({
unitdisplayed:4,
movelength:1,
dir:"V",
unitlen:204,
autoscroll:2000
});

})
</script>