js数据向上翻滚

复制代码 代码如下:
<script type="text/javascript">
var scrollDelay=10;//数字越大速度越慢
var Scroll=document.getElementById("scroll");
var Scroll2=document.getElementById("scroll2");
var currentTop=0,preTop=0,stoptime=0,stopscroll=false;
var ScrollChild=Scroll.getElementsByTagName("li");
var ScrollHeight=Scroll.offsetHeight;
function ScrollInfo(){
if(stopscroll==true) return;
currentTop++;
if(currentTop+1>=ScrollHeight){
currentTop--;
stoptime++;
if(stoptime==parseInt(ScrollHeight)*scrollDelay) {
currentTop=0;
stoptime=0;
}
}else{
preTop=Scroll.scrollTop;
Scroll.scrollTop++;
if(preTop==Scroll.scrollTop){
Scroll.scrollTop=Scroll2.offsetHeight-ScrollHeight;
Scroll.scrollTop+=1;
}
}
}
function Int_Scroll(){
Scroll2.innerHTML="";
Scroll2.innerHTML=Scroll.innerHTML;
Scroll.innerHTML=Scroll2.innerHTML+Scroll2.innerHTML;
Scroll.onmouseover=function(){
stopscroll=true;
}
Scroll.onmouseout=function(){
stopscroll=false;
}
setInterval("ScrollInfo()",scrollDelay);
}
window.setTimeout("Int_Scroll()",1000);
</script>

</p> <p> <title>Untitled</title> </p> <p> .kefuchu{ width:109px;}<br /> .SS_dh1{background:url(../images/SSindex/SS_dh1.jpg) no-repeat; height:51px; width:84px; float:left}<br /> .SS_dh2{background:url(../images/SSindex/SS_dh2.jpg) no-repeat; height:51px; width:25px; float:left; display:block}<br /> .SS_dh3{background:url(../images/SSindex/SS_dh3.jpg) repeat-y; width:109px; }<br /> .SS_dh4{background:url(../images/SSindex/SS_dh4.jpg) no-repeat; height:17px; width:109px; }<br /> .SS_dh5{background:url(../images/SSindex/SS_dh5.jpg) no-repeat; height:23px; width:74px; margin-left:20px;} </p> <p> #scroll li{float:left;width:150px;}<br /> #scroll2{display:none;} </p> <ul style="width:500px;height:20px;overflow:hidden;border:1px red solid;line-height:20px" id="scroll"> <li>北冥有鱼</li> <li>jb51.net</li> <li>看书了</li> <li>kanshule.com</li> <li>好好学习</li> <li>发生大幅6</li> <li>发生大幅7</li> <li>发生大幅8</li> <li>发生大幅9</li> <li>发生大幅10</li> <li>发生大幅11</li> <li>发生大幅12</li> <li>发生大幅13</li> <li>发生大幅14</li> <li>发生大幅15</li> <li>发生大幅16</li> <li>发生大幅17</li> <li>发生大幅18</li> <li>发生大幅19</li> <li>发生大幅20</li> </ul> <ul id="scroll2"> <p>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]

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