var getOs=function()
{
try
{
var u =
window.navigator.userAgent.toLocaleLowerCase(),
msie = /(msie)
([\d.]+)/,
chrome = /(chrome)\/([\d.]+)/,
firefox
= /(firefox)\/([\d.]+)/,
safari =
/(safari)\/([\d.]+)/,
opera =
/(opera)\/([\d.]+)/,
ie11 =
/(trident)\/([\d.]+)/,
b =
u.match(msie)||u.match(chrome)||u.match(firefox)||u.match(safari)||u.match(opera)||u.match(ie11);
if(b[1].indexOf("msie")==0||b[1].indexOf("trident")==0)
{
return
1;
}
return
0;
}
catch(e)
{
return
0;
}
}
原文:http://www.cnblogs.com/qiyongliang/p/3623158.html