var browser={
    versions:function(){   
           var u = navigator.userAgent, app = navigator.appVersion;   
           return {//绉诲姩缁堢娴忚鍣ㄧ増鏈俊鎭�   
                trident: u.indexOf('Trident') > -1, //IE鍐呮牳  
                presto: u.indexOf('Presto') > -1, //opera鍐呮牳  
                webKit: u.indexOf('AppleWebKit') > -1, //鑻规灉銆佽胺姝屽唴鏍�  
                gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //鐏嫄鍐呮牳  
                mobile: !!u.match(/AppleWebKit.*Mobile.*/), //鏄惁涓虹Щ鍔ㄧ粓绔�  
                ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios缁堢  
                android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android缁堢鎴栬€卽c娴忚鍣�  
                iPhone: u.indexOf('iPhone') > -1 , //鏄惁涓篿Phone鎴栬€匭QHD娴忚鍣�  
                iPad: u.indexOf('iPad') > -1, //鏄惁iPad    
                webApp: u.indexOf('Safari') == -1, //鏄惁web搴旇绋嬪簭锛屾病鏈夊ご閮ㄤ笌搴曢儴  
                weixin: u.indexOf('MicroMessenger') > -1, //鏄惁寰俊   
                qq: u.match(/\sQQ/i) == " qq" //鏄惁QQ  
            };  
         }(),  
         language:(navigator.browserLanguage || navigator.language).toLowerCase()  
}   

$(document).ready(function(){
    $('#vid_mask').bind('click', function() {
      $('#vid')[0].play();
    });
    $('#vid')[0].click();
    $('#vid')[0].play();
});

  if(browser.versions.mobile || browser.versions.ios || browser.versions.android ||   
    browser.versions.iPhone || browser.versions.iPad){        
      var v=document.getElementById('vid');
      var s=document.getElementById('yx');
       var aut=v.getAttributeNode('autoplay'); 
        
        v.removeAttributeNode(aut);
         
    
       var auts=s.getAttributeNode('autoplay');  
         
           s.removeAttributeNode(auts);
      
    }else{
     var auto=document.createAttribute('autoplay');
     auto.nodeValue="true";
    v.setAttributeNode(auto);
    s.setAttributeNode(auto);
    }