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最简单的带按钮的无缝滚动

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>带左右箭头切换的自动滚动图片JS特效</title><style type="text/css"><!--.rollBox{width:704px;padding:12px 0 5px 6px;margin:0 auto;padding-left:35px;}.rollBox .LeftBotton{height:52px;width:60px;background:url(/space/ga llery746/%E8%A3%85%E9%A5%B0%E8%A3%85%E6%BD%A2%E7%BD%91/1419320-button.jpg) no-repeat 0px 0;overflow:hidden;float:left;display:inline;margin:50px 0 0 0;cursor:pointer;}.rollBox .RightBotton{height:52px;width:60px;background:url(/space/ gallery746/%E8%A3%85%E9%A5%B0%E8%A3%85%E6%BD%A2%E7%BD%91/1419320-button.jpg) no-repeat -60px 0;overflow:hidden;float:left;display:inline;margin:50px 0 0 0;cursor:pointer;}.rollBox .Cont{width:330px;overflow:hidden;float:left;}.rollBox .ScrCont{width:10000000px;}.rollBox .Cont .pic{width:165px;float:left;text-align:center;}.rollBox .Cont .pic img{padding:6px;background:#fff;border:1px solid #ccc;display:block;margin:0 auto;}.rollBox .Cont .pic p{line-height:12px;font-size:12px;color:#000;}.rollBox .Cont a:link,.rollBox .Cont a:visited{color:#000;text-decoration:none;}.rollBox .Cont a:hover{color:#f00;text-decoration:none;}.rollBox #List1,.rollBox #List2{float:left;}--></style></head><body><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"><div id="List1"><!-- 图片列表begin --><div class="pic"><a href="/" target="_blank"><img src="/space/gallery746/%E8%A3%85%E9%A5%B0%E8%A3%85%E6%B D%A2%E7%BD%91/previews-med/2070819-_20101027171058_16193.jpg" width="140" height="140" /></a></div><div class="pic"><a href="/content-13468-7.htm" target="_blank"><imgsrc="/space/gallery746/%E8%A3%85%E9%A5%B0%E8%A3%85%E6%B D%A2%E7%BD%91/1420391-5.jpg" width="140" height="140" /></a></div><div class="pic"><a href="/content-13763-6.htm" target="_blank"><img src="/space/gallery746/%E8%A3%85%E9%A5%B0%E8%A3%85%E6%B D%A2%E7%BD%91/1420389-3.jpg" width="140" height="140" /></a></div><div class="pic"><a href="/content-13811.htm" target="_blank"><img src="/space/gallery746/%E8%A3%85%E9%A5%B0%E8%A3%85%E6%B D%A2%E7%BD%91/1420387-2.jpg" width="140" height="140" /></a></div><!-- 图片列表end --></div><div id="List2"></div></div></div><div class="RightBotton" onmousedown="ISL_GoDown()" onmouseup="ISL_StopDown()" onmouseout="ISL_StopDown()"></div></div></div><script language="javascript" type="text/javascript"><!--//--><![CDATA[//><!--//图片滚动列表var Speed = 1; //速度(毫秒)var Space = 5; //每次移动(px)var PageWidth = 330; //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();',3000); //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);}}//--><!]]></script></body></html>。

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