jquery autocomplete with remote json object -

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i want make input field have jquery autocomplete fetch company names database , display user. below snippet found on jquery.com. want rewrite fit needs , need help.

$(function() {   function log( message ) {    $( "<div/>" ).text( message ).prependto( "#log" );    $( "#log" ).attr( "scrolltop", 0 );   }    $( "#company_name" ).autocomplete({    source: function( request, response ) {     $.ajax({      url: "inc/company_name.php",      datatype: "jsonp",      data: {       featureclass: "p",       style: "full",       maxrows: 12,       name_startswith: request.term      },      success: function( data ) {       response( $.map( data.geonames, function( item ) {        return {         label: item.name,         value: item.name        }       }));      }     });    },    minlength: 2,    select: function( event, ui ) {     log( ui.item ?      "selected: " + ui.item.label :      "nothing selected, input " + this.value);    },    open: function() {     $( ).removeclass( "ui-corner-all" ).addclass( "ui-corner-top" );    },    close: function() {     $( ).removeclass( "ui-corner-top" ).addclass( "ui-corner-all" );    }   }); });

in source attribute, upon sucess, want replace 

response( $.map( data.geonames,     function( item ) { ... }

with proper code display json object data. below json object created in php.

<?php  $arr = array  ( 'item' => 'company name' );  echo json_encode($arr); ?>

try autocomplete plugin:

http://docs.jquery.com/plugins/autocomplete

the example: 

var data = "core selectors attributes traversing manipulation css events effects ajax utilities".split(" ");     $("#example").autocomplete(data);

you modify fit yours using ajaxloader arte:

http://plugins.jquery.com/node/12682

you use code:

/* init arte engine */ $.arte({'ajax_url':'remote_xml_file_url'}).add_action("xml_node", fct);  /* function called every tick new node */ function fct(data){   window.data = data; }

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