function showTab(tabHeadId,tabContentId,divName,headName) 
	{
		//tab层
		var tabDiv = document.getElementById(divName);
		var taContents = tabDiv.childNodes;
		for(i=0; i<taContents.length; i++) 
		{
			//将所有内容层都设为不可见
			if(taContents[i].id!=null && taContents[i].id != headName)
			{
				taContents[i].style.display = 'none';
			}
		}
		//将要显示的层设为可见
		document.getElementById(tabContentId).style.display = 'block';  
		//遍历tab头中所有的超链接
		var tabHeads = document.getElementById(headName).getElementsByTagName('a');
		for(i=0; i<tabHeads.length; i++)
		{ 
			//将超链接的样式设为未选的tab头样式
			tabHeads[i].className='tvTabBtn'; 
		}
		//将当前超链接的样式设为已选tab头样式
		document.getElementById(tabHeadId).className='curTvTabBtn';
		document.getElementById(tabHeadId).blur();
	}
	
	function showTabWithClass(tabHeadId,tabContentId,divName,headName, inactiveClassName, activeClassName) 
	{
		//tab层
		var tabDiv = document.getElementById(divName);
		var taContents = tabDiv.childNodes;
		for(i=0; i<taContents.length; i++) 
		{
			//将所有内容层都设为不可见
			if(taContents[i].id!=null && taContents[i].id != headName)
			{
				taContents[i].style.display = 'none';
			}
		}
		//将要显示的层设为可见
		document.getElementById(tabContentId).style.display = 'block';  
		//遍历tab头中所有的超链接
		var tabHeads = document.getElementById(headName).getElementsByTagName('a');
		for(i=0; i<tabHeads.length; i++)
		{ 
			//将超链接的样式设为未选的tab头样式
			tabHeads[i].className = inactiveClassName; 
		}
		//将当前超链接的样式设为已选tab头样式
		document.getElementById(tabHeadId).className = activeClassName;
		document.getElementById(tabHeadId).blur();
	}
	
	function linkto(n){
		var url;
		switch(n){
			case 1:
			  url="http://article.lawtv.com.cn/jczt/shfz/index.html";
			break;
			case 2:
			  url="http://article.lawtv.com.cn/jczt/jrfz/index.html";
			break;
			case 3:
			  url="http://article.lawtv.com.cn/jczt/qiyefazhi/index.html";
			break;
			case 4:
			  url="http://article.lawtv.com.cn/jczt/tyfz/index.html";
			break;
			case 5:
			  url="http://article.lawtv.com.cn/jczt/ylfz/index.html";
			break;
			case 6:
			  url="http://article.lawtv.com.cn/jczt/ywfz/index.html";
			break;
			case 7:
			  url="http://article.lawtv.com.cn/jchf/fzlzl/index.html"; //精彩回放
			break;
			case 8:
			  url="http://article.lawtv.com.cn/fzbbvideolist/index.html"; //法治播报
			break;
			case 9:
			  url="#"; //节目预告
			break;
			case 10:
			  url="http://article.lawtv.com.cn/zwbd/index.html"; //护法播客
			break;
			case 11:
			  url="http://article.lawtv.com.cn/gjsflist/index.html"; //法治全视野
			break;
			case 12:
			  url="http://article.lawtv.com.cn/jczt/xiangzhen/index.html"; //乡镇法治
			break;
			 //			
		}
		 document.location.href=url;
	}