var len = $('.dian>li').length;
var index = 0;
var adTimer;
$('.dian li').mouseover(function(){
index = $('.dian li').index(this);
showImg(index);
}).eq().mouseover();
$('.Fbanner').hover(function(){
clearInterval(adTimer);
},function(){
adTimer = setInterval(function(){
index++;
if(index==len)
{
index=0;
}
showImg(index);
},2000)
}).trigger('mouseleave');
function showImg(index){
var adWidth = $('#banner>ul>li:first').width();
$('.pic').stop(true,false).animate({
'left':306*index+'px'
})
$('.dian li').removeClass('button').eq(index).addClass('button');
}

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