(function($){
$.fn.extend({
newsList:function(options){
var defaults ={
actName:'li', //顯示條數(shù)名；
maxShowNum:'6', //最多的顯示條數(shù)；
actNameH:'28', //一次移動(dòng)的距離；
ulClass:'.ul_news_list', //被復(fù)制層的class
copyUlClass:'.ul_news_list2', //復(fù)制層的class
autoTime:'1500', //自動(dòng)運(yùn)行時(shí)間；
clickGoUpC:'.go_uplist', //點(diǎn)擊向上class;
clickDownUpC:'.go_downlist', //點(diǎn)擊向下class;
goStart:'go_tart',
autoCloss:'flase' //自動(dòng)運(yùn)行開(kāi)關(guān),當(dāng)為'flase'時(shí)為開(kāi)，其它則關(guān)；
} ;

options = $.extend(defaults, options);
return this.each(function(){
var o = options;
var counts =1;
var linum = $($(this).find(o.actName),$(this)).size();
var ul_class = $($(this).find(o.ulClass),$(this));
var copy_ul_class = $($(this).find(o.copyUlClass),$(this));
var click_go_up_c = $($(this).find(o.clickGoUpC),$(this));
var click_go_down_C = $($(this).find(o.clickDownUpC),$(this));
var go_start = $($(this).find(o.goStart),$(this));
if(linum > o.maxShowNum){
$(copy_ul_class).html($(ul_class).html());
goStartList();
}
var thiswrap = $($(ul_class).parent().parent(),$(this));
//自動(dòng)運(yùn)行函數(shù)
function auto_function(){
if(counts <= linum){
$(ul_class).animate({top:'-=' + o.actNameH},o.autoTime);
$(copy_ul_class).animate({top:'-=' + o.actNameH},o.autoTime);
counts++;
}else{
$(ul_class).animate({top:0},0);
$(copy_ul_class).animate({top:0},0);
counts = 1;
}
}
//點(diǎn)擊向上移動(dòng)時(shí)；
if(linum > o.maxShowNum){
$(click_go_up_c).click(function(){
if(counts <= linum){
$(ul_class).animate({top:'-=' + o.actNameH},0);
$(copy_ul_class).animate({top:'-=' + o.actNameH},0);
counts++;
}else{
$(ul_class).animate({top:0},0);
$(copy_ul_class).animate({top:0},0);
counts = 1;
}
});
}
//點(diǎn)擊向下移動(dòng)時(shí)；
if(linum > o.maxShowNum){
$(click_go_down_C).click(function(){
if(counts > 1){
counts--;
$(ul_class).animate({top:'-'+ counts*o.actNameH},0);
$(copy_ul_class).animate({top:'-'+ counts*o.actNameH},0);
}else{
$(ul_class).animate({top:0},0);
$(copy_ul_class).animate({top:0},0);
counts = linum+1;
}
});
}
//鼠標(biāo)經(jīng)過(guò)所發(fā)生的開(kāi)始停止；
if(linum > o.maxShowNum){
$(thiswrap).hover(function(){
goStopList();
},function(){
goStartList();
});
}
function goStartList(){
if(o.autoCloss === 'flase'){
go_start = setInterval(auto_function,o.autoTime);
}
}
function goStopList(){
clearInterval(go_start);
}
});
}
});
}(jQuery));

<script language="javascript">
$(document).ready(function(){
$("#newslist").newsList();
});
</script>

<div id="newslist">
<div class="go_upanddown"><span class="go_uplist"><img src="images/newslist/goupbtn.gif" /></span><span class="go_downlist"><img src="images/newslist/godownbtn.gif" /></span></div>
<div class="news_list_bar">
<ul class="ul_news_list">
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<li><a href="#">2、摩洛哥塞拉，藝術(shù)家在一場(chǎng)為流浪兒童為流浪兒童為流浪兒童為流浪兒童募捐的馬戲節(jié)目中表演</a></li>
<li><a href="#">3、昆明警方近日縣的“洪興甸縣的“洪興甸縣的“洪興甸縣的“洪興幫”黑惡勢(shì)力團(tuán)伙，繳獲...</a></li>
<li><a href="#">4、印度克什知自己的孩子在亂中喪生時(shí)痛不欲生..</a><a href="#">曾參加過(guò)唐曾參加過(guò)唐到了舟曲參加救援</a></li>
<li><a href="#">5、明昆明警方近日搗毀了尋甸縣的“洪興幫”黑惡勢(shì)力團(tuán)伙，繳獲...</a></li>
<li><a href="#">6、曾參加過(guò)唐曾參加過(guò)唐曾參加過(guò)唐曾參加過(guò)唐</a></li>
<li><a href="#">7、湖北武漢漢口漢口曾參加過(guò)唐曾參加過(guò)唐曾參加過(guò)唐曾參加過(guò)唐觀看兩江洪峰過(guò)</a></li>
<li><a href="#">8、湖北武漢漢曾參加過(guò)唐曾參加過(guò)唐曾參加過(guò)唐曾參加過(guò)唐集在江邊觀</a></li>
<li><a href="#">9、湖北武漢漢口漢口龍王廟景區(qū)觀景平臺(tái)上，市民聚集在江邊觀看兩江洪峰過(guò)漢</a></li>
</ul>
<ul class="ul_news_list2"></ul>
</div>
</div>

body { font-family:"微軟雅黑",Arial,"Lucida Grande", Verdana, Lucida; font-size:12px; }
*{ padding:0; margin:0;}
img { border:0;}
.clear { clear:both;}
a { color:#000; text-decoration:none;}
a:hover { color:#EC6104; text-decoration:none;}
.undis { display:none;}/*news_list*/
.news_list_bar { position:relative; width:560px; height:168px; overflow:hidden; background:url(../images/slideshow2/v3_picture6.gif) repeat-y; background-color:#F00;}
.ul_news_list,
.ul_news_list2{ position:relative; list-style:none;}
.ul_news_list li,
.ul_news_list2 li{line-height:28px; height:28px; width:500px; overflow:hidden; white-space:nowrap;padding:0 20px;}
.ul_news_list li a,
.ul_news_list2 li a{ padding-right:20px;}
.go_upanddown { position:absolute; margin:-20px 0 0 500px;}
.go_upanddown span { padding-right:10px; cursor:pointer;}