jquery判断浏览器型号和版本

var userAgent = window.navigator.userAgent.toLowerCase();

var version = $.browser.version;

$(".info").html(version);

if ($.browser.msie) {

alert("this is msie");

}

else if ($.browser.safari) {

alert("this is safari!");

}

else if ($.browser.mozilla) {

alert("this is mozilla!");

}

else if ($.browser.opera) {

alert("this is opera");

}

else {

alert("i don't konw!");

}

if (version == "6.0") { alert("6.0"); }