function showTd2(id){
			  	var vtd1=document.getElementById('tda');
				var vtd2=document.getElementById('tdb');
				var vtd3=document.getElementById('tdc');
				var vtd4=document.getElementById('tdd');
				var vtd5=document.getElementById('tde');
				
				vtd1.background="images/xw5.gif";
				vtd2.background="images/xw5.gif";
				vtd3.background="images/xw5.gif";
				vtd4.background="images/xw5.gif";
				vtd5.background="images/xw5.gif";
				
			    var vtd=document.getElementById('td'+id);
				vtd.background="images/xw4.gif";
				
				var css1=document.getElementById('cssa');
				var css2=document.getElementById('cssb');
				var css3=document.getElementById('cssc');
				var css4=document.getElementById('cssd');
				var css5=document.getElementById('csse');
				var css=document.getElementById('css'+id);
				css1.className="";
				css2.className="";
				css3.className="";
				css4.className="";
				css5.className="";
				css.className="text2";
				
				setVisible('diva',false);
				setVisible('divb',false);
				setVisible('divc',false);
				setVisible('divd',false);
				setVisible('dive',false);
				
				setVisible('div'+id,true); 
			  }
			  
			  
			  
function showTd(id){
			  	var vtd1=document.getElementById('td1');
				vtd1.background="images/xw2.gif";
				var vtd2=document.getElementById('td2');
				vtd2.background="images/xw2.gif";
				
			    var vtd=document.getElementById('td'+id);
				vtd.background="images/xw1.gif";
				
				var css1=document.getElementById('css1');
				var css2=document.getElementById('css2');
				var css=document.getElementById('css'+id);
				css1.className="";
				css2.className="";
				css.className="text2";
				
				setVisible('div1',false);
				setVisible('div2',false);
				
				setVisible('div'+id,true); 
			  }
		
		
		
		
//加入收藏，设为首页
    function AddFavorite(sURL, sTitle)
    {
        try
        {
            window.external.addFavorite(sURL, sTitle);
        }
        catch (e)
        {
            try
            {
                window.sidebar.addPanel(sTitle, sURL, "");
            }
            catch (e)
            {
                alert("加入收藏失败，请使用Ctrl+D进行添加");
            }
        }
    }
    function SetHome(obj,vrl)
    {
        try
        {
                obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
        }
        catch(e){
                if(window.netscape) {
                        try {
                                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); 
                        } 
                        catch (e) { 
                                alert("此操作被浏览器拒绝！\n请在浏览器地址栏输入“about:config”并回车\n然后将[signed.applets.codebase_principal_support]设置为'true'"); 
                        }
                        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
                        prefs.setCharPref('browser.startup.homepage',vrl);
                 }
        }
    }