(function()
{
	var demo=document.getElementById("demo");
	var demo1=document.getElementById("demo1");
	var demo2=document.getElementById("demo2");

	var config_speed=25//速度数值越大速度越慢

	demo2.innerHTML=demo1.innerHTML
	function Marquee()
	{
		if(demo2.offsetWidth-demo.scrollLeft<=0)
			demo.scrollLeft-=demo1.offsetWidth
		else
			demo.scrollLeft++
	}
	var timerID=window.setInterval(Marquee,config_speed)
	demo.onmouseover=function(){window.clearInterval(timerID)};
	demo.onmouseout=function(){timerID=window.setInterval(Marquee,config_speed)};
})();