/* 实现id为containId中的内容横向滚动， */
function tranverseMarquee(containId,leftId,rightId)
{
	var demoContain = document.getElementById(containId);
	var demoLeft = document.getElementById(leftId);
	var demoRight = document.getElementById(rightId);
	var speed=20;
	demoRight.innerHTML=demoLeft.innerHTML;
	demoContain.scrollLeft=demoContain.scrollWidth;
	function Marquee()
	{
		if(demoRight.offsetWidth-demoContain.scrollLeft<=0)
	  	demoContain.scrollLeft-=demoLeft.offsetWidth;
	  else
	  {
	  	demoContain.scrollLeft++;
  	}
	}
	
	
	var MyMar=setInterval(Marquee,speed);
	demoContain.onmouseover=function() {clearInterval(MyMar)};
	demoContain.onmouseout=function() {MyMar=setInterval(Marquee,speed)};
}