jQuery IE version detection:

////////////////// this is the sniffing code /////////////////////////////

$(document).ready(function(){
if ( document.all && !window.opera && !window.XMLHttpRequest && $.browser.msie )
{var isIE6 = true;}
else
{ var isIE6 = false;} ;
$.browser.msie6 = isIE6;

/////////////////// this is your browser version info ////////////////////////////