HTML 判断android ios

<script>
var ua = navigator.userAgent.toLowerCase();
//var isIOS = /\((iPhone|iPad|iPod)/i.test(ua);
var isIOS = /\(iPad/i.test(ua);
if(isIOS){
    location.replace('http://slide.ipad.sina.com.cn/play.php?sid=42283&id=57321&ch=52'+location.hash);
}




//iPhone,android访问转到wap页面
var isIPhone = /\(iPhone/i.test(ua);
var isAndroid = /android/.test(ua);
if( isIPhone || isAndroid ){
    location.replace('http://interface.sina.cn/pc_to_wap_dp.d.html?sourcefrom=slide_pc&url=http%3A%2F%2Fslide.astro.sina.com.cn%2Fgif%2Fslide_52_42283_57321.html');
}




</script>