var demo=document.all[prefix+'_demo'];
	var demo1=document.all[prefix+'_demo1'];
	var demo2=document.all[prefix+'_demo2'];

	demo2.innerHTML=demo1.innerHTML;
	if(direction=='down')	demo.scrollTop=demo.scrollHeight; 
	if(direction=='right')	demo.scrollLeft=demo.scrollWidth; 
	function Marquee(){ 
		if(direction=='up'){
			if(demo2.offsetTop-demo.scrollTop<=0){
				demo.scrollTop-=demo1.offsetHeight; 
			}else{ 
				demo.scrollTop++;
			} 
		}else if(direction=='down'){
			if(demo1.offsetTop-demo.scrollTop>=0){ 
				demo.scrollTop+=demo2.offsetHeight; 
			}else{ 
				demo.scrollTop--; 
			} 
		}else if(direction=='left'){
			if(demo2.offsetWidth-demo.scrollLeft<=0) 
				demo.scrollLeft-=demo1.offsetWidth; 
			else{ 
				demo.scrollLeft++; 
			} 
		}else if(direction=='right'){
			if(demo.scrollLeft<=0) 
				demo.scrollLeft+=demo2.offsetWidth; 
			else{ 
				demo.scrollLeft--; 
			} 
		}
	} 
	var MyMar=setInterval(Marquee,speed);
	demo.onmouseover=function() {clearInterval(MyMar)};
	demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)};