滚动效果

答案：
<P><div id="adsfar">
  <table width="100%" border="0" cellpadding="2" cellspacing="1" bgcolor="#CCCCCC">
    <tr>
      <td bgcolor="#FFFFFF">1</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">2</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">3</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">4</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">5</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">6</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">7</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">8</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">9</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">10</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">11</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">12</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">13</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">14</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">15</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">16</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">17</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">18</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">19</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">20</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">21</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">22</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">23</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">24</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">25</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">26</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">27</td>
    </tr>
    <tr>
      <td bgcolor="#FFFFFF">28</td>
    </tr>
  </table>
</div>
<script type="text/javascript">
marque(320,196,"icefable1","box1left")
var scrollElem;
var stopscroll;
var stoptime;
var preTop;
var leftElem;
var currentTop;
var marqueesHeight;
function marque(width,height,marqueName,marqueCName){
 try{
   marqueesHeight = height;
   stopscroll     = false;</P>
<P>   scrollElem = document.getElementById("adsfar");
   with(scrollElem){
  style.width     = width;
  style.height    = marqueesHeight;
  style.overflow  = 'hidden';
  noWrap          = true;
   }</P>
<P>   scrollElem.onmouseover = new Function('stopscroll = true');
   scrollElem.onmouseout  = new Function('stopscroll = false');</P>
<P>   preTop     = 0; 
   currentTop = 0; 
   stoptime   = 0;</P>
<P>   leftElem = document.getElementById("adsfar");
   scrollElem.appendChild(leftElem.cloneNode(true));
    
   init_srolltext();</P>
<P> }catch(e) {}
}
function init_srolltext(){
  scrollElem.scrollTop = 0;
  setInterval('scrollUp()', 18);
}</P>
<P>function scrollUp(){
  if(stopscroll) return;
  currentTop += 1;
  if(currentTop == marqueesHeight+1) {
    stoptime += 1;
    currentTop -= 1;
    if(stoptime == (marqueesHeight)*1) {//停顿时间
      currentTop = 0;
      stoptime = 0;
    }
  }else{</P>
<P>    preTop = scrollElem.scrollTop;
    scrollElem.scrollTop += 1;
    if(preTop == scrollElem.scrollTop){
      scrollElem.scrollTop = marqueesHeight;
      scrollElem.scrollTop += 1;
    }
  }
}
</Script></P>
<P>
  [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]

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