$(function() {
$( "#tabs" ).tabs();
$('#appendButton').click(function(){
// create auto
var $auto = $('<div class="ui-widget"><label for="tags">Tags: <\/label><input id="tags"><\/div>');
// append auto
$('#tabs-1').append($auto);
console.log('autocomplete');
// once is appened start autocomplete
var availableTags = [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl",
"PHP",
"Python",
"Ruby",
"Scala",
"Scheme"
];
$('#tags').autocomplete({
source: availableTags
});
});
});
<html lang="en">
<head>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.2/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.2/jquery-ui.js"></script>
</head>
<body>
<div id="tabs">
<ul>
<li><a href="#tabs-1">Nunc tincidunt</a></li>
</ul>
<div id="tabs-1">
<p> <input id="appendButton" type="button" onclick"appendAuto();" value="appendAuto" /></p>
</div>
</div>
</body>
</html>