javascript上下左右定时滚动插件

　　<script type="text/javascript">

　　function Marquee() {

　　this.ID = document.getElementById(arguments[0]);

　　this.Direction = arguments[1];

　　this.Step = arguments[2];

　　this.Width = arguments[3];

　　this.Height = arguments[4];

　　this.Timer = arguments[5];

　　this.WaitTime = arguments[6];

　　this.StopTime = arguments[7];

　　if (arguments[8]) { this.ScrollStep = arguments[8]; } else { this.ScrollStep = this.Direction > 1 ? this.Width : this.Height; }

　　this.CTL = this.StartID = this.Stop = this.MouseOver = 0;

　　this.ID.style.overflowX = this.ID.style.overflowY = "hidden";

　　this.ID.noWrap = true;

　　this.ID.style.width = this.Width;

　　this.ID.style.height = this.Height;

　　this.ClientScroll = this.Direction > 1 ? this.ID.scrollWidth : this.ID.scrollHeight;

　　this.ID.innerHTML += this.ID.innerHTML;

　　this.Start(this, this.Timer, this.WaitTime, this.StopTime);

　　}

　　Marquee.prototype.Start = function(msobj, timer, waittime, stoptime) {

　　msobj.StartID = function() { msobj.Scroll(); }

　　msobj.Continue = function() {

　　if (msobj.MouseOver == 1) { setTimeout(msobj.Continue, waittime); }

　　else { clearInterval(msobj.TimerID); msobj.CTL = msobj.Stop = 0; msobj.TimerID = setInterval(msobj.StartID, timer); }

　　}

　　msobj.Pause = function() { msobj.Stop = 1; clearInterval(msobj.TimerID); setTimeout(msobj.Continue, waittime); }

　　msobj.Begin = function() {

　　msobj.TimerID = setInterval(msobj.StartID, timer);

　　msobj.ID.onmouseover = function() { msobj.MouseOver = 1; clearInterval(msobj.TimerID); }

　　msobj.ID.onmouseout = function() { msobj.MouseOver = 0; if (msobj.Stop == 0) { clearInterval(msobj.TimerID); msobj.TimerID = setInterval(msobj.StartID, timer); } }

　　}

　　setTimeout(msobj.Begin, stoptime);

　　}

　　Marquee.prototype.Scroll = function() {

　　switch (this.Direction) {

　　case 0:

　　this.CTL += this.Step;

　　if (this.CTL >= this.ScrollStep && this.WaitTime > 0) { this.ID.scrollTop += this.ScrollStep + this.Step - this.CTL; this.Pause(); return; }

　　else { if (this.ID.scrollTop >= this.ClientScroll) this.ID.scrollTop -= this.ClientScroll; this.ID.scrollTop += this.Step; }

　　break;

　　case 1:

　　this.CTL += this.Step;

　　if (this.CTL >= this.ScrollStep && this.WaitTime > 0) { this.ID.scrollTop -= this.ScrollStep + this.Step - this.CTL; this.Pause(); return; }

　　else { if (this.ID.scrollTop <= 0) this.ID.scrollTop += this.ClientScroll; this.ID.scrollTop -= this.Step; }

　　break;

　　case 2:

　　this.CTL += this.Step;

　　if (this.CTL >= this.ScrollStep && this.WaitTime > 0) { this.ID.scrollLeft += this.ScrollStep + this.Step - this.CTL; this.Pause(); return; }

　　else { if (this.ID.scrollLeft >= this.ClientScroll) this.ID.scrollLeft -= this.ClientScroll; this.ID.scrollLeft += this.Step; }

　　break;

　　case 3:

　　this.CTL += this.Step;

　　if (this.CTL >= this.ScrollStep && this.WaitTime > 0) { this.ID.scrollLeft -= this.ScrollStep + this.Step - this.CTL; this.Pause(); return; }

　　else { if (this.ID.scrollLeft <= 0) this.ID.scrollLeft += this.ClientScroll; this.ID.scrollLeft -= this.Step; }

　　break;

　　}

　　}

　　</script>

　　<script type="text/javascript">

　　<!--

　　window.onload = function() {

　　new Marquee(

　　"s1", //容器ID

　　0, //向上滚动(0向上 1向下 2向左 3向右)

　　2, //滚动的步长

　　251, //容器可视宽度

　　520, //容器可视高度

　　50, //定时器 数值越小，滚动的速度越快(1000=1秒,建议不小于20)

　　2000, //间歇停顿时间(0为不停顿,1000=1秒)

　　3000, //开始时的等待时间(0为不等待,1000=1秒)

　　75 //间歇滚动间距(可选),可理解为行高，我这里是3*25=75，就是每次滚动三行

　　);

　　};

　　-->

　　</script>