var $ = function(i){return document.getElementById(i);}
var ua = navigator.userAgent.toLowerCase();
var isIE = (ua.indexOf("msie") > -1),isIE7 = (ua.indexOf("msie 7") > -1),isOpera = (ua.indexOf("opera") > -1),isSafari = (ua.indexOf("webkit") != -1 || ua.indexOf("khtml") != -1),isGecko = (!isSafari && ua.indexOf("gecko") > -1);


/*change link*/
function setTab(m,n){
var tli=document.getElementById("tabmenu"+m).getElementsByTagName("li");
var mli=document.getElementById("tabmains"+m).getElementsByTagName("ul");
for(i=0;i<tli.length;i++){

   try { mli[i].style.display= i==n?"block":"none";} catch(err) { }

   tli[i].className= i==n?'on':'none';
   
  
}
}