jquery autocomplete problema maiuscola minuscola

[Lino80]

Ho lo script autocomplete ajax che tramite questa pagina richiama le parole contenute in un database:

<?php

$link = mysql_connect('localhost', 'db', 'passw');
mysql_query("SET NAMES 'utf8';");
if (!$link) {
   die('Could not connect: ' . mysql_error());
}
if (!mysql_select_db("db")) {
   echo "Unable to select mydbname: " . mysql_error();
   exit;
}

$result = mysql_query("SELECT nome FROM  persone WHERE nome LIKE '$part%' LIMIT 10");
while ($row = mysql_fetch_assoc($result)) {
           $colors[]=$row['nome'];
}
mysql_free_result($result);
mysql_close($link);

$part = $_GET['part'];
$length = strlen($part);
// check the parameter
if(isset($_GET['part']) and $_GET['part'] != ” and $length > 1)
{
    // initialize the results array
    $results = array();

    // search colors
    foreach($colors as $color)
    {
        // if it starts with 'part' add to results
        if( strpos($color, $_GET['part']) === 0 ){
            $results[] = $color;
        }
    }

    // return the array as json with PHP 5.2
    echo json_encode($results);
}
?>

Ho un problema, nel database le parole iniziano tutte con la lettera MAIUSCOLA "A", se nel campo di ricerca digito ad es. Alberto mi visualizza l'elenco.. mentre se digito alberto non mi visualizza nulla.

Ho letto che la funzione javascript Selector.CASE_INSENSITIVE_CLASS_NAMES serve per la distinzione tra maiuscole e minuscole è così?

chi mi da una mano a risolvere questo problema.

la pagina JS è questa:

// global variables
var acListTotal   =  0;
var acListCurrent = -1;
var acDelay		  = 500;
var acURL		  = null;
var acSearchId	  = null;
var acResultsId	  = null;
var acSearchField = null;
var acResultsDiv  = null;

function setAutoComplete(field_id, results_id, get_url)
{

	// initialize vars
	acSearchId  = "#" + field_id;
	acResultsId = "#" + results_id;
	acURL 		= get_url;

	// create the results div
	$("#auto").append('<div id="' + results_id + '"></div>');

	// register mostly used vars
	acSearchField	= $(acSearchId);
	acResultsDiv	= $(acResultsId);

	// reposition div
	repositionResultsDiv();
	
	// on blur listener
	acSearchField.blur(function(){ setTimeout("clearAutoComplete()", 200) });

	// on key up listener
	acSearchField.keyup(function (e) {

		// get keyCode (window.event is for IE)
		var keyCode = e.keyCode || window.event.keyCode;
		var lastVal = acSearchField.val();

		// check an treat up and down arrows
		if(updownArrow(keyCode)){
			return;
		}

		// check for an ENTER or ESC
		if(keyCode == 13 || keyCode == 27){
			clearAutoComplete();
			return;
		}

		// if is text, call with delay
		setTimeout(function () {autoComplete(lastVal)}, acDelay);
	});
}

// treat the auto-complete action (delayed function)
function autoComplete(lastValue)
{
	// get the field value
	var part = acSearchField.val();

	// if it's empty clear the resuts box and return
	if(part == ''){
		clearAutoComplete();
		return;
	}

	// if it's equal the value from the time of the call, allow
	if(lastValue != part){
		return;
	}

	// get remote data as JSON
	$.getJSON(acURL + part, function(json){

		// get the total of results
		var ansLength = acListTotal = json.length;

		// if there are results populate the results div
		if(ansLength > 0){

			var newData = '';

			// create a div for each result
			for(i=0; i < ansLength; i++) {
				newData += '<div class="unselected">' + json[i] + '</div>';
			}

			// update the results div
			acResultsDiv.html(newData);
			acResultsDiv.css("display","block");
			
			// for all divs in results
			var divs = $(acResultsId + " > div");
		
			// on mouse over clean previous selected and set a new one
			divs.mouseover( function() {
				divs.each(function(){ this.className = "unselected"; });
				this.className = "selected";
			})
		
			// on click copy the result text to the search field and hide
			divs.click( function() {
				acSearchField.val(this.childNodes[0].nodeValue);
				clearAutoComplete();
			});

		} else {
			clearAutoComplete();
		}
	});
}

// clear auto complete box
function clearAutoComplete()
{
	acResultsDiv.html('');
	acResultsDiv.css("display","none");
}

// reposition the results div accordingly to the search field
function repositionResultsDiv()
{
	// get the field position
	var sf_pos    = acSearchField.offset();
	var sf_top    = sf_pos.top;
	var sf_left   = sf_pos.left;

	// get the field size
	var sf_height = acSearchField.height();
	var sf_width  = acSearchField.width();

	// apply the css styles - optimized for Firefox
	acResultsDiv.css("position","absolute");
	acResultsDiv.css("left", sf_left - 2);
	acResultsDiv.css("top", sf_top + sf_height + 5);
	acResultsDiv.css("width", sf_width - 2);
}


// treat up and down key strokes defining the next selected element
function updownArrow(keyCode) {
	if(keyCode == 40 || keyCode == 38){

		if(keyCode == 38){ // keyUp
			if(acListCurrent == 0 || acListCurrent == -1){
				acListCurrent = acListTotal-1;
			}else{
				acListCurrent--;
			}
		} else { // keyDown
			if(acListCurrent == acListTotal-1){
				acListCurrent = 0;
			}else {
				acListCurrent++;
			}
		}

		// loop through each result div applying the correct style
		acResultsDiv.children().each(function(i){
			if(i == acListCurrent){
				acSearchField.val(this.childNodes[0].nodeValue);
				this.className = "selected";
			} else {
				this.className = "unselected";
			}
		});

		return true;
	} else {
		// reset
		acListCurrent = -1;
		return false;
	}
}

[Lino80]

Lo script è questo http://sks.com.np/article/9/ajax-aut...php-mysql.html

chi mi da una mano a inserire o modificare il codice per far leggere le lettere digitando sia in maiuscolo che in minuscolo?

grazie mille

[Lino80]

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