新手求教，如何在一个页面共用一个JS特效。

在一个页面里面有多处内容要用到同一个JS效果，我把ID 改为class 后，js失效，不知道怎么回事。
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解决方案 »

  1.   

    // JavaScript Document
    <!--//[email protected] qiuxiangyuan.comvar Speed_1 = 10; //var Space_1 = 20; //var PageWidth_1 = 116 * 3; //var interval_1 = 3000; //
    var fill_1 = 0; //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();}////-->
      

  2.   

    GetObj 是跟据 id 取元素，要跟据 class 取元素可以考虑用 jquery