var speed=30
		var zzt
		demo2.innerHTML=demo1.innerHTML;

		function time(){}
		function Marquee(){
			if(demo2.offsetWidth-demo.scrollLeft<=0)
				demo.scrollLeft-=demo1.offsetWidth
			else{
				demo.scrollLeft+=5
			}	
		}
		function Marquee2(){
			if(demo2.offsetWidth-demo.scrollLeft>=575)
				demo.scrollLeft+=demo1.offsetWidth
			else{
				demo.scrollLeft-=5
			}	
		}
		function Marquee3(){
			if(demo2.offsetWidth-demo.scrollLeft<=0)
				demo.scrollLeft-=demo1.offsetWidth
			else{
				demo.scrollLeft+=1
			}	
		}
		function Marquee4(){
			if(demo2.offsetWidth-demo.scrollLeft>=575)
				demo.scrollLeft+=demo1.offsetWidth
			else{
				demo.scrollLeft-=1
			}	
		}
		var MyMar=setInterval(time,speed)
		var MyMar2=setInterval(time,speed)
		gd=setTimeout("jixu('a')",30000000000)
		function gundong(zt){			
			if(zt=="a"){
				zzt="a"
				clearInterval(MyMar)
				clearInterval(MyMar2)
				MyMar=setInterval(Marquee,speed)
			}
			else{
				zzt="b"
				clearInterval(MyMar)
				clearInterval(MyMar2)
				if(gd){
					clearTimeout(gd)
				}
				jixu("a")
			}
		}
		function xiangyou(zt){			
			if(zt=="a"){
				zzt="a"
				clearInterval(MyMar)
				clearInterval(MyMar2)
				MyMar2=setInterval(Marquee2,speed)
			}
			else{
				zzt="b"
				clearInterval(MyMar)
				clearInterval(MyMar2)
				if(gd){
					clearTimeout(gd)
				}
				jixu("b")
			}
		}		
		function jixu(zt){
			if(zt=="a"){
				zzt="a"
				MyMar=setInterval(Marquee3,speed)
			}	
			else{
				zzt="b"
				MyMar2=setInterval(Marquee4,speed)
			}
		}
		demo.onmouseover=function() {
				clearInterval(MyMar)
				clearInterval(MyMar2)
			}
		demo.onmouseout=function() {
				if(zzt=="a"){
					jixu("a")					
				}
				else{
					jixu("b")		
				}
			}