Add propieties to an autocomplete dropbox

I am a really beginner and I’ve found different threads that talk about proprieties of an autocomplete dropbox. However, when I want to add them all, I am not able to do it.

The first problem I have is that I am doing my webpage with wix… and when I want the autocomplete to redirect to a page it just rediects in the box where the html is… any solution. I would also like to add a limit numer of displays to the dropbox.

Thank you in advance and here you have the html that I already have (copied):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>jQuery UI Autocomplete Testt</title>
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"/>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<script>
	$(document).ready(function() {
		var data = [
			{label: 'Google', value: 'http://google.com'},
			{label: 'Yahoo', value: 'http://yahoo.com'},
			{label: 'BMW', value: 'http://bmw.com'},
			{label: 'Bing', value: 'http://bing.com'}
		];

    	$("input#autocomplete").autocomplete({
			source: data,
			focus: function (event, ui) {
				$(event.target).val(ui.item.label);
				return false;
			},
			select: function (event, ui) {
				$(event.target).val(ui.item.label);
				window.location = ui.item.value;
				return false;
			}
		});
  	});
  </script>
</head>
<body>
<input id="autocomplete" />
</body>
</html>