function ScrollImgLeft(){
var speed=20
var scroll_begin = document.getElementById("scroll_begin");
var scroll_end = document.getElementById("scroll_end");
var scroll_div = document.getElementById("scroll_div");
var scroll_end0= document.getElementById("scroll_end0");
var isLeft=true;

var scroll_btn_right=document.getElementById("scroll_btn_right");
var scroll_btn_left=document.getElementById("scroll_btn_left");
scroll_end.innerHTML=scroll_begin.innerHTML;
scroll_end0.innerHTML=scroll_begin.innerHTML;
scroll_div.scrollLeft=scroll_end0.offsetWidth;
/*
		if(scroll_end.offsetWidth-scroll_div.scrollLeft<=0) {
			alert(scroll_end.offsetWidth+"--"+scroll_div.scrollLeft);
		  scroll_div.scrollLeft-=scroll_begin.offsetWidth;}
		else
		  scroll_div.scrollLeft++;
*/

  function Marquee(){
	 if ( isLeft) { 
		//if(2*scroll_begin.offsetWidth-scroll_div.scrollLeft<=2*(scroll_begin.offsetWidth-scroll_div.offsetWidth)) {
		if(scroll_div.scrollLeft>=2*scroll_begin.offsetWidth) {
		  scroll_div.scrollLeft=scroll_begin.offsetWidth;

		}
		else
		  scroll_div.scrollLeft++;
	 } else {
		if (scroll_div.scrollLeft<=0){
			  scroll_div.scrollLeft=2*scroll_begin.offsetWidth;
		}else
			  scroll_div.scrollLeft--;
	 }
  }
var MyMar=setInterval(Marquee,speed);
  scroll_div.onmouseover=function() {clearInterval(MyMar)}
  scroll_div.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
	if (scroll_btn_left){
	  scroll_btn_left.onclick=function(){
		  if (isLeft==true) return;
		  isLeft=true;
	  }
  }
  if (scroll_btn_right){
	  scroll_btn_right.onclick=function(){
		  if (isLeft!=true) return;
		  isLeft=false;
	  }
  }
}