根据 无缝滚动和 八向滚动修改而来,特点是能同一程序中分别向四个方向移动。 对滚动框内的样式设置有些要求。 效果: 顺德于1993年被批准为广东省综合改革试点。 2006年顺德成为首个GDP超过1000亿的县级行政单位。 2000至2003年顺德均在中国百强县排名中位居榜首。 2005年顺德实现国内生产总值856.11亿元。 代码: <! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > < html xmlns ="http://www.w3.org/1999/xhtml" > < head > < meta http-equiv ="Content-Type" content ="text/html; charset=gb2312" /> < title > JavaScript 无缝上下左右滚动加定高定宽停顿效果(兼容ie/ff) </ title > </ head > < body > < script type ="text/javascript" > var $ = function (id) { return "string" == typeof id ? document.getElementById(id) : id;};var Class = { create: function() { return function() { this.initialize.apply(this, arguments); } }}Object.extend = function(destination, source) { for (var property in source) { destination[property] = source[property]; } return destination;}function addEventHandler(oTarget, sEventType, fnHandler) { if (oTarget.addEventListener) { oTarget.addEventListener(sEventType, fnHandler, false); } else if (oTarget.attachEvent) { oTarget.attachEvent("on" + sEventType, fnHandler); } else { oTarget["on" + sEventType] = fnHandler; }};var Scroller = Class.create();Scroller.prototype = { initialize: function(idScroller, idScrollMid, options) { var oThis = this, oScroller = $(idScroller), oScrollMid = $(idScrollMid); this.SetOptions(options); this.Side = this.options.Side || ["up"];//方向 this.scroller = oScroller; //对象 this.speed = this.options.Speed; //速度 this.timer = null; //时间 this.pauseHeight = 0; //定高 this.pauseWidth = 0; //定宽 this.pause = 0; //定高(宽) this.side = 0; //参数 //用于上下滚动 this.heightScroller = parseInt(oScroller.style.height) || oScroller.offsetHeight; this.heightList = oScrollMid.offsetHeight; //用于左右滚动 this.widthScroller = parseInt(oScroller.style.width) || oScroller.offsetWidth; this.widthList = oScrollMid.offsetWidth; //js取不到css设置的height和width oScroller.style.overflow = "hidden"; oScrollMid.appendChild(oScrollMid.cloneNode(true)); oScrollMid.appendChild(oScrollMid.cloneNode(true)); addEventHandler(oScroller, "mouseover", function() { oThis.Stop(); }); addEventHandler(oScroller, "mouseout", function() { oThis.Start(); }); this.Start(); }, //设置默认属性 SetOptions: function(options) { this.options = {//默认值 Step: 1,//每次变化的px量 Speed: 20,//速度(越大越慢) Side: ["up"],//滚动方向:"up"是上,"down"是下,"left"是左,"right"是右 PauseHeight: 0,//隔多高停一次 PauseWidth: 0,//隔多宽停一次 //当上下和左右一起使用时必须设置PauseHeight和PauseWidth来设置转向位置 PauseStep: 1000//停顿时间(PauseHeight或PauseWidth大于0该参数才有效) }; Object.extend(this.options, options || {}); }, //转向 Turn: function() { //通过设置方向数组的排列来转向 this.Side.push(this.Side.shift().toLowerCase()); }, //上下滚动 ScrollUpDown: function() { this.pause = this.pauseHeight; this.scroller.scrollTop = this.GetScroll(this.scroller.scrollTop, this.heightScroller, this.heightList, this.options.PauseHeight); this.pauseHeight = this.pause; var oThis = this; this.timer = window.setTimeout(function(){ oThis.Start(); }, this.speed); }, //左右滚动 ScrollLeftRight: function() { this.pause = this.pauseWidth; //注意:scrollLeft超过1400会自动变回1400 注意长度 this.scroller.scrollLeft = this.GetScroll(this.scroller.scrollLeft, this.widthScroller, this.widthList, this.options.PauseWidth); this.pauseWidth = this.pause; var oThis = this; this.timer = window.setTimeout(function(){ oThis.Start(); }, this.speed); }, //获取设置滚动数据 GetScroll: function(iScroll, iScroller, iList, iPause) { var iStep = this.options.Step * this.side; if(this.side > 0){ if(iScroll >= (iList * 2 - iScroller)){ iScroll -= iList; } } else { if(iScroll <= 0){ iScroll += iList; } } this.speed = this.options.Speed; if(iPause > 0){ if(Math.abs(this.pause) >= iPause){ this.speed = this.options.PauseStep; this.pause = iStep = 0; this.Turn(); } else { this.pause += iStep; } } return (iScroll + iStep); }, //开始 Start: function() { //方向设置 switch (this.Side[0].toLowerCase()) { case "right" : if(this.widthList < this.widthScroller) return; this.side = -1; this.ScrollLeftRight(); break; case "left" : if(this.widthList < this.widthScroller) return; this.side = 1; this.ScrollLeftRight(); break; case "down" : if(this.heightList < this.heightScroller) return; this.side = -1; this.ScrollUpDown(); break; case "up" : default : if(this.heightList < this.heightScroller) return; this.side = 1; this.ScrollUpDown(); } }, //停止 Stop: function() { clearTimeout(this.timer); }};window.onload = function(){ new Scroller("idScroller", "idScrollMid",{ Side:["up","left"], PauseHeight:50, PauseWidth:400 });} </ script > < style > .Scroller {}{line-height:50px; border:1px solid #000000; padding:0px 10px; height:50px; width:400px;}.Scroller *{}{margin:0px; padding:0px;}.ScrollMid {}{float:left;}.ScrollMid ul{}{width:800px;float:left;}.ScrollMid li{}{list-style:none; float:left; width:390px; padding-left:10px;} </ style > < div id ="idScroller" class ="Scroller" style ="width:400px; height:50px;" > < div style ="width:1600px" > < div id ="idScrollMid" class ="ScrollMid" > < ul > < li > 111111111111 </ li > < li > 2222222222222 </ li > < li > 333333333333333 </ li > < li > 4444444444444 </ li > </ ul > </ div > </ div > </ div > < div id ="test" ></ div > </ body > </ html >