用js判断是否为360浏览器的实现代码

<script>
var check360browser={
//如果是360 浏览器的话
"ok":function (){
//这里是判断360成功之后的代码
alert('js -> 360');
},
"try360SE":function (callback) {  
var ret = false,    
img = new Image();  
img.src = 'res://360se.exe/2/2025';  
img.onload = function() {   
ret = true;  
}  
setTimeout(function() {   
if(ret==true){
check360browser.ok();
}else{
ret=check360browser.try360SE_2();
if(ret){
check360browser.ok();
}
}
}, 100); 
},
"try360SE_2":function (){  
var is360 = false;  
if(window.navigator.userAgent.indexOf('Chrome')!=-1){ 
if(window.navigator.webkitPersistentStorage){ 
 
}else{ 
return true; 
} 
} 
}
}
check360browser.try360SE();
</script>