JS实用图片无缝滚动

<DIV style="MARGIN: 15px auto; WIDTH: 657px; OVERFLOW: hidden" id=colee_left>  <TABLE border=0 cellSpacing=0 cellPadding=0>      <TR>      <TD id=colee_left1 vAlign=top align=center>        <TABLE border=0 cellSpacing=0 cellPadding=2>                    <TR align=center>                <TD>              <TABLE style="margin-right:10px;" cellSpacing=0 cellPadding=0 width=185>                                <TR><TD height=151 align=center style="background:#dfdfdf; ">                <A href="#" target=_blank><IMG src="images/2.png" width=175 height=141></A>                </TD></TR>                <TR><TD height=40 align=center><A href="#" target=_blank>各色聚氨酯漆</A></TD></TR>                             </TABLE>            </TD>                                           </TR>          </TABLE>      </TD>      <TD id=colee_left2 vAlign=top></TD>      </TR>      </TABLE>      <SCRIPT type="text/javascript">      //使用div时，请保证colee_left2与colee_left1是在同一行上.      var speed=30//速度数值越大速度越慢      var colee_left2=document.getElementById("colee_left2");      var colee_left1=document.getElementById("colee_left1");      var colee_left=document.getElementById("colee_left");      colee_left2.innerHTML=colee_left1.innerHTML      function Marquee3(){      if(colee_left2.offsetWidth-colee_left.scrollLeft<=0)//offsetWidth 是对象的可见宽度      colee_left.scrollLeft-=colee_left1.offsetWidth//scrollWidth 是对象的实际内容的宽，不包边线宽度      else{        colee_left.scrollLeft++      }      }      var MyMar3=setInterval(Marquee3,speed)      colee_left.onmouseover=function() {clearInterval(MyMar3)}      colee_left.onmouseout=function() {MyMar3=setInterval(Marquee3,speed)      }      </SCRIPT>            </DIV>