var istop=1;
var LorR=0;
var speed=300000000;
var demo = document.getElementById("demo");
var marquePic1 = document.getElementById("marquePic1");
var marquePic2 = document.getElementById("marquePic2");
marquePic2.innerHTML=marquePic1.innerHTML;
demo.scrollLeft=marquePic1.scrollWidth/2;
function left(){
	LorR=0;
}
function right(){
	LorR=1;
}
function spd(n){
	speed=n;
	clearInterval(MyMar);
	MyMar=setInterval(Marquee,speed);
}    
function Marquee(){
if(LorR) MarqueeRight();
else MarqueeLeft();
}
function MarqueeLeft(){
	with (demo) {
		if(scrollLeft>=marquePic1.scrollWidth){
			scrollLeft=0
		}else{
			scrollLeft++
		}
	}
}
function MarqueeRight(){
	with (demo) {
		if(scrollLeft<=0){
			scrollLeft=marquePic1.scrollWidth
		}else{
			scrollLeft--
		}
	}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}