javascript偵測瀏覽器的方法

最方便的方式是用jQuery

jQuery.browser

傳回一個object

{
msie : true,
version : "9.0"
}

或直接用javascript

var browserInfo = function()
{ 
var agent = navigator.userAgent.toLowerCase();
var that = {};
that.isIE = (agent.indexOf('msie')!=-1); //IE
that.isFF = (agent.indexOf('firefox')!=-1);//firefox
that.isSa = (agent.indexOf('safari')!=-1);//safari
that.isOp = (agent.indexOf('opera')!=-1);//opera
that.isChrome = (agent.indexOf('chrome')!=-1);//chrome
that.isOther = (!this.isIE && !this.isFF && !this.isSa && !this.isOp)//unknown Browser
return that;
}();

browserInfo.isChrome

return:

true