jq 文字上下不间断滚动实例

<div class="ruzhuright">
<div class="rzcontent">
<div class="gundongright">
<div class="gdlist">
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</div>
<div class="gdlist">
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</div>
<div class="gdlist">
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<div class="gdlist">
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</div>
</div>
</div>
</div> html代码

.ruzhuright{
display: table-cell;
width: 200px;
height: auto;
vertical-align: middle;
padding: 0 2%;
}
.rzcontent{
width: 100%;
height: 34px;
overflow: hidden;
}
.gundongright{
width: 100%;
height: auto;
}
.gdlist{
width: 100%;
line-height: 17px;
height: 34px;
font-size: 12px;
color: #999999;
}
.gdlist a{
color: #007aff;
font-size: 12px;
} css样式

jq代码：

<script>
function lunbo(){
if(!$('.gundongright').is(":animated")){
var wli = $('.gundongright .gdlist').height();
var lli = $('.gundongright .gdlist').length;
var tw = lli*wli;
var witem = wli;
var marl = parseInt($('.gundongright').css('margin-top'));
var endmar = (parseInt(tw/witem)-1)*witem;
if(marl <= -endmar){
$('.gundongright').animate({marginTop:'0px'},300)
}else{
$('.gundongright').animate({marginTop:marl-witem+'px'},300)
}
}
}
var t = setInterval('lunbo()',1000);
</script>

效果图：