var navName = navigator.appName ;
var brVer = navigator.userAgent;
var brNum;
var reg = new RegExp('/');

function verNumIE() {
   var brVerId = brVer.indexOf('MSIE');
   brNum = brVer.substr(brVerId,8);
}

function verNumOt() {
   var brVerId = brVer.search(reg);
   brNum = brVer.substring(brVerId+1);
}