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Editorial Team
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Asked: 2026-05-15T23:27:16+00:00

Here is my code: <script type=text/javascript> if (navigator.userAgent.indexOf(‘BlackBerry’)!= -1){ document.write(‘<link rel=stylesheet href=/m/css/mobile.css type=text/css />’);

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Here is my code:

<script type="text/javascript"> 
if (navigator.userAgent.indexOf('BlackBerry')!= -1){
    document.write('<link rel="stylesheet" href="/m/css/mobile.css" type="text/css" />');
} else if (navigator.userAgent.indexOf('iPhone')!= -1) {
    document.write('<link rel="stylesheet" href="/m/css/smartmobile.css" type="text/css" />');
}else if (navigator.userAgent.indexOf('Android')!= -1) {
    document.write('<link rel="stylesheet" href="/m/css/smartmobile.css" type="text/css" />');
} else if (navigator.userAgent.indexOf('Windows XP')!= -1) {
    document.write('<link rel="stylesheet" href="/m/css/smartmobile.css" type="text/css" />');
}
else{
    document.write('<link rel="stylesheet" href="/m/css/mobile.css" type="text/css" />');
}
</script>

Clearly my Windows XP one is wrong. Anyone know what I need to replace it with so that the /css/mobile.css only shows up on phones other than the iPhone and Android devices.

Whether I need to add Linux and Windows or all the popular browsers instead of OS

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1 Answer

  1. Editorial Team

    you need a user-agent for a browser, not an operating system, but here you go:
    ‘Windows NT’ for windows

    and:
    ‘MSIE’ explorer
    ‘Gecko’ for firefox (and browsers with gecko engine)

    but seriously, you shouldn’t need to know what os it is, but what browser

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