function getArticalNames(obj,name,tij)
	{	
		var p = document.getElementById(obj);
		var plist = p.getElementsByTagName(tij);
		var rlist = new Array();
		for(i=0;i<plist.length;i++)
		{
			if(plist[i].getAttribute("id") == name)
			{
				rlist[rlist.length] = plist[i];
			}
		}
		return rlist;
	}

		function button_artical(obj,name)
		{
			var p = obj.parentNode.getElementsByTagName("li");
			var p1 = getArticalNames(name,"articallist","ul");
			for(i=0;i<p1.length;i++)
			{
				if(obj==p[i])
				{
					p[i].className = "main-head-button-li-1";
					p1[i].className = "main-head-news-ul-1";
				}
				else
				{
					p[i].className = "main-head-button-li-2";
					p1[i].className = "main-head-news-ul-2";
				}
			}
		}