SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
<form>
    <input type="text" />
</form>

JavaScript

alert($("input")[0] == document.activeElement);
$("input").focus();
alert($("input")[0] == document.activeElement);