js图片自动滚动并带翻页的功能

前台页面：

   
   <div class="rollBox">
    <div class="LeftBotton" onmousedown="ISL_GoUp()" onmouseup="ISL_StopUp()" onmouseout="ISL_StopUp()"></div>
     <div class="Cont" id="ISL_Cont">
      <div class="ScrCont">
       <ul id="List1">
        <!-- 图片列表 begin -->
        <asp:Repeater ID="rptProductDetail" runat="server">
                     <ItemTemplate>
                     <li><a target="_blank" href='http://images.cnblogs.com/hotel/images/<%# Eval("Timg") %>'><img onerror="CheckImgError(this);" title="<%= lblName.Text %>(房间一角<%# Container.ItemIndex+1%>)" alt="<%= lblName.Text %>(房间一角<%# Container.ItemIndex+1%>)" src='<%# "http://images.cnblogs.com/hotel/images/"+Eval("Timg")%>' height="150" width="210" /></a></li>
                     </ItemTemplate>
                 </asp:Repeater>
        <!-- 图片列表 end -->
       </ul>
       <div id="List2"></div>
      </div>
     </div>
     <div class="RightBotton" onmousedown="ISL_GoDown()" onmouseup="ISL_StopDown()" onmouseout="ISL_StopDown()"></div>
</div>  

<script src="../js/ImageCodeScroll.js" type="text/javascript"></script>

 

js代码：

// JScript 文件

//图片滚动列表
var Speed = 1; //速度(毫秒)
var Space = 12; //每次移动(px)
var PageWidth =220; //翻页宽度
var fill = 0; //整体移位
var MoveLock = false;
var MoveTimeObj;
var Comp = 0;
var AutoPlayObj = null;
GetObj("List2").innerHTML = GetObj("List1").innerHTML;
GetObj('ISL_Cont').scrollLeft = fill;
GetObj("ISL_Cont").onmouseover = function(){clearInterval(AutoPlayObj);}
GetObj("ISL_Cont").onmouseout = function(){AutoPlay();}
AutoPlay();
function GetObj(objName){if(document.getElementById){return eval('document.getElementById("'+objName+'")')}else{return eval('document.all.'+objName)}} 
function AutoPlay(){ //自动滚动
 clearInterval(AutoPlayObj);
 AutoPlayObj = setInterval('ISL_GoDown();ISL_StopDown();',6000); //间隔时间
}
function ISL_GoUp(){ //上翻开始
 if(MoveLock) return;
 clearInterval(AutoPlayObj);
 MoveLock = true;
 MoveTimeObj = setInterval('ISL_ScrUp();',Speed);
}
function ISL_StopUp(){ //上翻停止
 clearInterval(MoveTimeObj);
 if(GetObj('ISL_Cont').scrollLeft % PageWidth - fill != 0){
  Comp = fill - (GetObj('ISL_Cont').scrollLeft % PageWidth);
  CompScr();
 }else{
  MoveLock = false;
 }
 AutoPlay();
}
function ISL_ScrUp(){ //上翻动作
 if(GetObj('ISL_Cont').scrollLeft <= 0){GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft + GetObj('List1').offsetWidth}
 GetObj('ISL_Cont').scrollLeft -= Space ;
}
function ISL_GoDown(){ //下翻
 clearInterval(MoveTimeObj);
 if(MoveLock) return;
 clearInterval(AutoPlayObj);
 MoveLock = true;
 ISL_ScrDown();
 MoveTimeObj = setInterval('ISL_ScrDown()',Speed);
}
function ISL_StopDown(){ //下翻停止
 clearInterval(MoveTimeObj);
 if(GetObj('ISL_Cont').scrollLeft % PageWidth - fill != 0 ){
  Comp = PageWidth - GetObj('ISL_Cont').scrollLeft % PageWidth + fill;
  CompScr();
 }else{
  MoveLock = false;
 }
 AutoPlay();
}
function ISL_ScrDown(){ //下翻动作
 if(GetObj('ISL_Cont').scrollLeft >= GetObj('List1').scrollWidth){GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft - GetObj('List1').scrollWidth;}
 GetObj('ISL_Cont').scrollLeft += Space ;
}
function CompScr(){
 var num;
 if(Comp == 0){MoveLock = false;return;}
 if(Comp < 0){ //上翻
  if(Comp < -Space){
   Comp += Space;
   num = Space;
  }else{
   num = -Comp;
   Comp = 0;
  }
  GetObj('ISL_Cont').scrollLeft -= num;
  setTimeout('CompScr()',Speed);
 }else{ //下翻
  if(Comp > Space){
   Comp -= Space;
   num = Space;
  }else{
   num = Comp;
   Comp = 0;
  }
  GetObj('ISL_Cont').scrollLeft += num;
  setTimeout('CompScr()',Speed);
 }
}