浏览器类型判断

 

 

<script type="text/javascript">

 

var ie678 = !+"\v1" ;

IE9 = window.msPerformance

if(!+"\v1"){

document.write(  ' ie 浏览器  <br>');

}

if( !!window.updateCommands ){

document.write(  '火狐   <br>');

}

 

 

var userAgent = navigator.userAgent.toLowerCase();

var browser={

    windows: /windows/.test( userAgent ),

    version: (userAgent.match( /.+(?:rv|it|ra|ie|me|ox)[\/: ]([\d.]+)/ ) || [0,'0'])[1],

    chrome: /chrome/.test( userAgent ),

    safari: /webkit/.test( userAgent ) && !/chrome/.test( userAgent ),

    opera: /opera/.test( userAgent ),

    msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),

    mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )

}

 

 

 

document.write(userAgent + '<br/>');

document.write('windows: ' + browser.windows + '<br/>');

document.write(browser.version + '<br/>');

document.write('safari: ' + browser.safari + '<br/>');

document.write('msie: ' + browser.msie+ '<br/>');

document.write('opera: ' + browser.opera+ '<br/>');

document.write('mozilla: ' + browser.mozilla+ '<br/>');

document.write('chrome: ' + browser.chrome+ '<br/>');

  

</script>