Browser Detection with version using jQuery instead of Hacks

/*
copyright @Nayeem
*/

// Checks the browser and adds classes to the body to reflect it.

$(function(){

var userAgent = navigator.userAgent.toLowerCase();
$.browser.chrome = /chrome/.test(navigator.userAgent.toLowerCase());

// Is this a version of IE?
if($.browser.msie){
$('body').addClass('browserIE');
// Add the version number
$('body').addClass('browserIE' + $.browser.version.substring(0,1));
}

// Is this a version of Chrome?
if($.browser.chrome){
$('body').addClass('browserChrome');
//Add the version number
userAgent = userAgent.substring(userAgent.indexOf('chrome/') +7);
userAgent = userAgent.substring(0,1);
$('body').addClass('browserChrome' + userAgent);
// If it is chrome then jQuery thinks it's safari so we have to tell it it isn't
$.browser.safari = false;
}

// Is this a version of Safari?
if($.browser.safari){
$('body').addClass('browserSafari');
// Add the version number
userAgent = userAgent.substring(userAgent.indexOf('version/') +8);
userAgent = userAgent.substring(0,1);
$('body').addClass('browserSafari' + userAgent);
}

// Is this a version of Mozilla?
if($.browser.mozilla){
//Is it Firefox?
if(navigator.userAgent.toLowerCase().indexOf('firefox') != -1){
$('body').addClass('browserFirefox');
// Add the version number
userAgent = userAgent.substring(userAgent.indexOf('firefox/') +8);
userAgent = userAgent.substring(0,1);
$('body').addClass('browserFirefox' + userAgent);
}
// If not then it must be another Mozilla
else{
$('body').addClass('browserMozilla');
}
}

// Is this a version of Opera?
if($.browser.opera){
$('body').addClass('browserOpera');
}

});

/*
you may use...
if($.browser.msie6){
....
}else if($.browser.msie7){
....
}else if($.browser.msie8){
....
}else if($.browser.msie6){
....
}else if($.browser.webkit ){ by using jquery 1.4
...
}else if($.browser.chrome1){
...
}else if($.browser.safari1){
...
}else if($.browser.safari2){
...
}else if($.browser.safari3){
...
}else if($.browser.mozilla1){
...
}else if($.browser.mozilla2){
...
}else if($.browser.mozilla3){
...
}

*/