// 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);
    }
}