js图片切换代码《转冷夜》

代码：

<script language="javascript">
<!--
//图片滚动列表 mengjia 070927
var Speed_1 = 6; //速度(毫秒)
var Space_1 = 20; //每次移动(px)
var PageWidth_1 = 117 * 3; //翻页宽度
var interval_1 = 5000; //翻页间隔
var fill_1 = 0; //整体移位
var MoveLock_1 = false;
var MoveTimeObj_1;
var MoveWay_1="right";
var Comp_1 = 0;
var AutoPlayObj_1=null;
function GetObj(objName){if(document.getElementById){return eval('document.getElementById("'+objName+'")')}else{return eval('document.all.'+objName)}}
function AutoPlay_1(){clearInterval(AutoPlayObj_1);AutoPlayObj_1=setInterval('ISL_GoDown_1();ISL_StopDown_1();',interval_1)}
function ISL_GoUp_1(){if(MoveLock_1)return;clearInterval(AutoPlayObj_1);MoveLock_1=true;MoveWay_1="left";MoveTimeObj_1=setInterval('ISL_ScrUp_1();',Speed_1);}
function ISL_StopUp_1(){if(MoveWay_1 == "right"){return};clearInterval(MoveTimeObj_1);if((GetObj('ISL_Cont_1').scrollLeft-fill_1)%PageWidth_1!=0){Comp_1=fill_1-(GetObj('ISL_Cont_1').scrollLeft%PageWidth_1);CompScr_1()}else{MoveLock_1=false}
AutoPlay_1()}
function ISL_ScrUp_1(){if(GetObj('ISL_Cont_1').scrollLeft<=0){GetObj('ISL_Cont_1').scrollLeft=GetObj('ISL_Cont_1').scrollLeft+GetObj('List1_1').offsetWidth}
GetObj('ISL_Cont_1').scrollLeft-=Space_1}
function ISL_GoDown_1(){clearInterval(MoveTimeObj_1);if(MoveLock_1)return;clearInterval(AutoPlayObj_1);MoveLock_1=true;MoveWay_1="right";ISL_ScrDown_1();MoveTimeObj_1=setInterval('ISL_ScrDown_1()',Speed_1)}
function ISL_StopDown_1(){if(MoveWay_1 == "left"){return};clearInterval(MoveTimeObj_1);if(GetObj('ISL_Cont_1').scrollLeft%PageWidth_1-(fill_1>=0?fill_1:fill_1+1)!=0){Comp_1=PageWidth_1-GetObj('ISL_Cont_1').scrollLeft%PageWidth_1+fill_1;CompScr_1()}else{MoveLock_1=false}
AutoPlay_1()}
function ISL_ScrDown_1(){if(GetObj('ISL_Cont_1').scrollLeft>=GetObj('List1_1').scrollWidth){GetObj('ISL_Cont_1').scrollLeft=GetObj('ISL_Cont_1').scrollLeft-GetObj('List1_1').scrollWidth}
GetObj('ISL_Cont_1').scrollLeft+=Space_1}
function CompScr_1(){if(Comp_1==0){MoveLock_1=false;return}
var num,TempSpeed=Speed_1,TempSpace=Space_1;if(Math.abs(Comp_1)<PageWidth_1/2){TempSpace=Math.round(Math.abs(Comp_1/Space_1));if(TempSpace<1){TempSpace=1}}
if(Comp_1<0){if(Comp_1<-TempSpace){Comp_1+=TempSpace;num=TempSpace}else{num=-Comp_1;Comp_1=0}
GetObj('ISL_Cont_1').scrollLeft-=num;setTimeout('CompScr_1()',TempSpeed)}else{if(Comp_1>TempSpace){Comp_1-=TempSpace;num=TempSpace}else{num=Comp_1;Comp_1=0}
GetObj('ISL_Cont_1').scrollLeft+=num;setTimeout('CompScr_1()',TempSpeed)}}
function picrun_ini(){
GetObj("List2_1").innerHTML=GetObj("List1_1").innerHTML;
GetObj('ISL_Cont_1').scrollLeft=fill_1>=0?fill_1:GetObj('List1_1').scrollWidth-Math.abs(fill_1);
GetObj("ISL_Cont_1").onmouseover=function(){clearInterval(AutoPlayObj_1)}
GetObj("ISL_Cont_1").onmouseout=function(){AutoPlay_1()}
AutoPlay_1();
}
//产品展示滚动图片结束
//-->
</script>

<style type="text/css">
/*中间图片专区*/
.gudq{ width:1003px; margin:0px; float:left;}
.gudq h1{ width:983px; height:35px; margin:0 auto; background:url(img/cmd-title.gif) repeat-x; font-size:16px; margin:0px; padding:0px; text-align:left; padding-left:20px; color:#D50200; font-family:"华文中宋";}
.gudq span{  padding-left:15px; line-height:30px;}
/***图片滚动区***/
.blk_18 {border: #e3e3e3 1px solid; font-size: 12px; background: #f3f3f3; overflow: hidden; width: 1001px; zoom: 1}
.blk_18 .pcont {float: left; overflow: hidden; width: 940px}
.blk_18 .ScrCont {width: 32766px; zoom: 1}
.blk_18 #List1_1 {float: left}
.blk_18 #List2_1 {float: left}
.blk_18 .LeftBotton {background: url(img/left1.gif) no-repeat; float: left; margin: 0px 1px; width: 15px; height: 140px}
.blk_18 .RightBotton {background: url(img/right1.gif) no-repeat; float: left; margin: 0px 1px; width: 15px; height: 140px}
.blk_18 .LeftBotton {background-position: 0px 0px; margin-left: 15px}
.blk_18 .RightBotton {background-position: 0px 0px; margin-left: -1px}
.blk_18 .LeftBotton:hover {background: url(img/left.gif) no-repeat;}
.blk_18 .RightBotton:hover {background: url(img/right.gif) no-repeat;}
.blk_18 .pl IMG {display: block; margin: 6px auto 1px; cursor: pointer; borderstyle: none;}
.blk_18 .pl {border: #f3f3f3 1px solid; float: left; width: 115px; line-height: 24px; text-align: center; text-decoration: underline; overflow:hidden;}
.blk_18 a.pl:hover {border: #ff9900 1px solid; background: #fff; color: #ff9900;}
.commu_cont3 {margin: 9px 7px 7px; line-height: 150%}
.commu_cont3 ul {width: 188px}
</style>

 

<!--中间滑动区展会图片-->
     <div class="gudq">
   <h1><span>展会展示</span></h1>
          <!-- picrotate start  -->
          <DIV class=blk_18>
            <A onmouseup=ISL_StopUp_1() class=LeftBotton onmousedown=ISL_GoUp_1() onmouseout=ISL_StopUp_1() href="javascript:void(0);" target=_self></A>
            <DIV class=pcont id=ISL_Cont_1>
              <DIV class=ScrCont>
                <DIV id=List2_1></DIV>
                <DIV id=List1_1>
                  <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息1<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息2<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息3<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息4<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息5<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息6<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息7<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息8<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息9<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息10<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息11<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息12<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息13<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息14<br /></A>
      <A class=pl href="#" ><IMG src="img/01.jpg" border="0" />展会图片信息15<br /></A>
    </DIV>
                <DIV id=List2_1></DIV>
              </DIV>
   </DIV>
            <A onmouseup=ISL_StopDown_1() class=RightBotton onmousedown=ISL_GoDown_1() onmouseout=ISL_StopDown_1() href="javascript:void(0);" target=_self></A>
    </DIV>
          <SCRIPT type=text/javascript>
          <!--
          picrun_ini();
          //-->
          </SCRIPT>
          <!-- picrotate end -->
     </div>