javascript画像のスクロール

 <div style="width:9999px;">
        <ul id="marquePic1_1">
         <li>
            <dl>
              <dt><a href="/zjtd/452.html" target="_blank" rel="nofollow">   </a></dt>
              <dd class="img"><a href="/zjtd/452.html" target="_blank" rel="nofollow"><img src="/statics/images/fk/1-1305211KA5533.jpg" width="46" height="46"></a></dd>
              <dd class="txt"><a href="#" target="_blank">    </a></dd>
            </dl>
          </li>
         <li>
            <dl>
              <dt><a href="/zjtd/452.html" target="_blank" rel="nofollow">   </a></dt>
              <dd class="img"><a href="/zjtd/452.html" target="_blank" rel="nofollow"><img src="/statics/images/fk/1-1305211KA5533.jpg" width="46" height="46"></a></dd>
              <dd class="txt"><a href="#" target="_blank">    </a></dd>
            </dl>
          </li>
       <li>
            <dl>
              <dt><a href="/zjtd/452.html" target="_blank" rel="nofollow">   </a></dt>
              <dd class="img"><a href="/zjtd/452.html" target="_blank" rel="nofollow"><img src="/statics/images/fk/1-1305211KA5533.jpg" width="46" height="46"></a></dd>
              <dd class="txt"><a href="#" target="_blank">    </a></dd>
            </dl>
          </li>
         <li>
            <dl>
              <dt><a href="/zjtd/452.html" target="_blank" rel="nofollow">   </a></dt>
              <dd class="img"><a href="/zjtd/452.html" target="_blank" rel="nofollow"><img src="/statics/images/fk/1-1305211KA5533.jpg" width="46" height="46"></a></dd>
              <dd class="txt"><a href="#" target="_blank">    </a></dd>
            </dl>
          </li>
          
        </ul>
        <ul id="marquePic2_1"></ul>
      </div>
    <script type="text/javascript">
                        var speed = 50
                        marquePic2_1.innerHTML = marquePic1_1.innerHTML
                        function Marquee() {
                            if (sswtexp.scrollLeft >= marquePic1_1.scrollWidth) {
                                sswtexp.scrollLeft = 0
                            } else {
                                sswtexp.scrollLeft++
                            }
                        }
                        var MyMar = setInterval(Marquee, speed)
                        sswtexp.onmouseover = function () { clearInterval(MyMar) }
                        sswtexp.onmouseout = function () { MyMar = setInterval(Marquee, speed) }
                    </script>