function ArtChangeBg(name, id, num)
{
	for(var i=1; i<=6; i++)
	{
		if( document.getElementById(name+i) != null )
		{
			document.getElementById(name+i).className=name + '2';
		}
	}
	document.getElementById(name+num).className=name;
	document.getElementById(name).innerHTML = document.getElementById(name+"_"+num).innerHTML;
}
function LoadCourse()
{
    if( document.getElementById("menu") != null )
	{
		document.getElementById("menu").innerHTML = document.getElementById("menu_1").innerHTML;
	}
	 if( document.getElementById("xinwen") != null )
	{
		document.getElementById("xinwen").innerHTML = document.getElementById("xinwen_1").innerHTML;
	}
	if( document.getElementById("waiyu") != null )
	{
		document.getElementById("waiyu").innerHTML = document.getElementById("waiyu_1").innerHTML;
	}
	
	if( document.getElementById("diannao") != null )
	{
		document.getElementById("diannao").innerHTML = document.getElementById("diannao_1").innerHTML;
	}
     if( document.getElementById("zhiye") != null )
	{
		document.getElementById("zhiye").innerHTML = document.getElementById("zhiye_1").innerHTML;
	}
	if( document.getElementById("zige") != null )
	{
		document.getElementById("zige").innerHTML = document.getElementById("zige_1").innerHTML;
	}
	if( document.getElementById("qita") != null )
	{
		document.getElementById("qita").innerHTML = document.getElementById("qita_1").innerHTML;
	}
	if( document.getElementById("wangxiao") != null )
	{
		document.getElementById("wangxiao").innerHTML = document.getElementById("wangxiao_1").innerHTML;
	}
	
}