//选择器
function $a(id,tag){var re=(id&&typeof id!="string")?id:document.getElementById(id);if(!tag){return re;}else{return re.getElementsByTagName(tag);}}
//标签切换效果[标题框子元素("id/li"),内容框子元素("id/li"),事件(mouseover/click),默认显示第几条(-1表示在鼠标移出全部隐藏,仅在事件mouseover有效),轮播时间(1秒=1000)]
function SwitchTag(tit,box,s,show,time)
{
	var t=tit.split('/'),b=box.split("/"),ts=$a(t[0],t[1]),bs=$a(b[0],b[1]),s=s||"onmouseover",now=show=show||0,c;
	for(var i=0;i<ts.length;i++){ts[i].old=ts[i].className.replace("show","");bs[i].old=bs[i].className.replace("show","");reg(i);}
	function init(){for(var i=0;i<ts.length;i++){ts[i].className=ts[i].old;bs[i].className=bs[i].old;};if(now!=-1){ts[now].className+=(t[2]||"")+" show";bs[now].className+=(b[2]||"")+" show";}}
	function reg(i){ts[i][s]=function(){clearInterval(c);now=i;init();}
	if(show!=-1&&time){bs[i].onmouseover=function(){clearInterval(c);};bs[i].onmouseout=function(){go();};ts[i].onmouseout=function(){go();}}
	if(show==-1&&s=="onmouseover"){ts[i].onmouseout=function(){now=-1;init();}}}
	function go(){c=setInterval(function(){(now<ts.length-1)?now++:now=0;init();},time);}
	if(show!=-1&&time){go();};init();
}