判断360浏览器

window.onload = function() { //application/vnd.chromium.remoting-viewer 可能为360特有            
    var is360 = _mime("type", "application/vnd.chromium.remoting-viewer");
    if (isChrome() && is360) {
      alert("检测到是360浏览器");
    }
  } //检测是否是谷歌内核(可排除360及谷歌以外的浏览器)        
  function isChrome() {
    var ua = navigator.userAgent.toLowerCase();
    return ua.indexOf("chrome") > 1;
  }
  //测试mime        
  function _mime(option, value) {
    var mimeTypes = navigator.mimeTypes;
    for (var mt in mimeTypes) {
      if (mimeTypes[mt][option] == value) { return true; }
    }
    return false;
  }