//滚动类
function Marquee(){
	this.ID = document.getElementById(arguments[0]);
    if (!this.ID) 
        return false;

	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;
	}
}

<!-- 示例 -->
<script>
//调用
window.onload = function(){
	new Marquee(
		"cargo",  //容器ID<br />
		0,  //向上滚动(0向上 1向下 2向左 3向右)<br />
		7,  //滚动的步长<br />
		568,  //容器可视宽度<br />
		189,  //容器可视高度<br />
		40,  //定时器 数值越小，滚动的速度越快(1000=1秒,建议不小于20)<br />
		4000,  //间歇停顿时间(0为不停顿,1000=1秒)<br />
		3000,  //开始时的等待时间(0为不等待,1000=1秒)<br />
		189 //间歇滚动间距(可选)<br />
	);
	new Marquee(
		"vehicle",  //容器ID<br />
		0,  //向上滚动(0向上 1向下 2向左 3向右)<br />
		7,  //滚动的步长<br />
		568,  //容器可视宽度<br />
		189,  //容器可视高度<br />
		40,  //定时器 数值越小，滚动的速度越快(1000=1秒,建议不小于2