// JScript 文件

//2.19添加首页滚动图片

var speed =document.getElementById("hSpeed").value; 
var mar = document.getElementById("hMarType").value;
var demo =document.getElementById("demo");
var demo1=document.getElementById("demo1");
var demo2=document.getElementById("demo2");

if(demo != null && demo1 != null && demo2 !=null)
{
    if(mar == "rt")
    {
        demo2.innerHTML=demo1.innerHTML;
        demo.scrollLeft=demo.scrollWidth;
    }
    else if (mar == "lt")
    {
        demo2.innerHTML=demo1.innerHTML;
    }
    
    function Marquee()
    {
        if(mar == "rt")//buxing
        {  
            try
            {
                if(demo.scrollLeft<=0)
                {
                    demo.scrollLeft=demo2.offsetWidth+2;
                }
                else
                {
                    demo.scrollLeft=demo.scrollLeft-2;
                }
            }
            catch(err){return;}
        }
        else if (mar == "lt")
        {
            try
            {
                if(demo2.offsetWidth-demo.scrollLeft<=0)
                {
                    demo.scrollLeft-=demo1.offsetWidth;
                }
                else
                {
                    demo.scrollLeft=demo.scrollLeft+2;
                }
            }
            catch(err){return;}
        }
    }
    var MyMar=setInterval(Marquee,speed)
    demo.onmouseover=function() {clearInterval(MyMar)}
    demo.onmouseout=function() 
    {
        MyMar=setInterval(Marquee,speed);
    }
}