jQuery & jQueryUI Base

HTML

<link rel="stylesheet" href="http://ajax.microsoft.com/ajax/jquery.ui/1.8.7/themes/black-tie/jquery-ui.css">
<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.7/jquery-ui.min.js"></script>
<script src="http://cloud.github.com/downloads/digitalBush/jquery.maskedinput/jquery.maskedinput-1.3.min.js"></script>
<input type="text" id="autocomplete" />
<div id="results"></div>

JavaScript

$("#autocomplete").autocomplete({
    source: ['Java', 'JavaScript', 'C', 'C#', 'C++'],
    appendTo: "#results",
    open: function() {
        var position = $("#results").position(),
            left = position.left, top = position.top;
        
        $("#results > ul").css({left: (left + 20) + "px",
                                top: (top + 4) + "px" });
        
    }
});