Limit results autocomplete jquery ui with slice fu

Question

I need to limit results (max 10) in this autocomplete jquery ui script. I know I have to use the slice function, but I'm not able to place it correctly inside the script. Thanks in advance for your help.

$(document).ready(function() {
    var myArr = [];

    $.ajax({
        type: "GET",
        url: "events.xml", // change to full path of file on server
        dataType: "xml",
        success: parseXml,
        complete: setupAC,
        failure: function(data) {
            alert("XML File could not be found");
            }
    });

    function parseXml(xml)
    {
        //find every query value
        $(xml).find("topevent").each(function()
        {
            //you are going to create an array of objects 
        var thisItem = {}; 
        thisItem['label'] = $(this).attr("label"); 
        thisItem['value'] = $(this).attr("value");
        myArr.push(thisItem); 

        }); 
    }

    function setupAC() {
    $("input#searchBoxEv").autocomplete({
    source: myArr,
    minLength: 3,
    select: function(event, ui) {
    var urlString = "http://mysite.com/" +  "eventi/" + (ui.item.value) + ".html";
    $("input#searchBoxEv").val(urlString);
    location.href=urlString;

                           }
    });
}
}); 

Answer 1

$("#auto").autocomplete({
    source: function(request, response) {
        var results = $.ui.autocomplete.filter(myarray, request.term);

        response(results.slice(0, 10));
    }
});

You could find more documentation here..

http://jqueryui.com/autocomplete/

Answer 2

Finally I solved the problem adding two parameters in jquery.ui css: max height and overflow:hidden. Autocomplete is initialized at 3° letter, for better results people have to type more. It works with five different browsers (IE, Chrome, Opera, Firefox, Safari).

.ui-autocomplete { position: absolute; cursor: default; text-align:left; max-height:245px; overflow:hidden; }