var ii=0;
var speed=1;
var fangxiang=1;
var demo7 = document.getElementById("demo7");
var demo6 = document.getElementById("demo6");
var demo5 = document.getElementById("demo5");
demo7.innerHTML=demo6.innerHTML
function andyzsy(){
	if (ii==1){
		return;
	}
	for(j=1;j<=speed;j++){
		if(fangxiang=="2"){
			demo5.scrollLeft--;
			if(demo5.scrollLeft=="0"){
				demo5.scrollLeft=demo6.offsetWidth;
			}
		}else{
			demo5.scrollLeft++;
			if(demo5.scrollLeft>=demo6.offsetWidth){
				demo5.scrollLeft=0;
			}
		}
	}
}
function setspeed(x){
	speed=x;
}
function setfangxiang(x){
	fangxiang=x;
}
setInterval(andyzsy,30);