The if condition below I think it says - if the browser is IE and IE browser version is newer than 9, but I don\'t have IE 9 to test it so it is hard to know the correct out
Your code looks fine, but you forgot to set the radix parameter in parseInt:
parseInt
if ($.browser.msie && parseInt($.browser.version, 10) > 9){ // you need to wait a couple years to test if it works... alert("I'm IE10 or 11..."); }
This cannot cause any errors