var speed3=25;//速度数值越大速度越慢
getId("demo2").innerHTML = getId("demo1").innerHTML;
function Marquee()
{
  if((getId("demo2").offsetWidth - getId("piclist").scrollLeft) <= 0)
  {
   getId("piclist").scrollLeft -= getId("demo1").offsetWidth;
  }
  else
  {
   getId("piclist").scrollLeft++;
  }
}
var MyMar=setInterval(Marquee,speed3);
getId("piclist").onmouseover=function()
{
  clearInterval(MyMar);
}
getId("piclist").onmouseout=function()
{
  MyMar=setInterval(Marquee,speed3);
}