基于jquery实现的文字向上跑动类似跑马灯的效果

<div class="recordList">
<ul class="tpl-rotate-recordList" style="margin-top: 0px;">
<li class="tpl-rotate-recordList-item">
恭喜187****5204获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜137****1372获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜156****0276获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜139****9856获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜136****0580获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜136****0580获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜138****8118获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜136****5555获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜136****0580获得1000RBM
</li>
<li class="tpl-rotate-recordList-item">
恭喜136****0580获得1000RBM
</li>
</ul>
</div>

/*自动轮换xuyw*/
var AutoScroll = function(a) {
$(a).find("ul:first").animate( {
marginTop : "-20px"
}, 500, function() {
$(this).css( {
marginTop : "0px"
}).find("li:first").appendTo(this)
})
}
if ($(".recordList ul li").length > 0) {
setInterval('AutoScroll(".recordList")', 2000)
} else {
$(".recordList").hide()
}