No, non mi da nessun errore. Può dipende dalla mia scrittura del codice?

codice:
<script type="text/javascript">
$(function()
 {
  $("#textarea_share_input").autocomplete({
    search: function(event, ui) {$('#autocomplete_div ul').empty();},
    minLenght: 1,
  	source: "http://www.worldtechitalia.it/system/div_refresh/add_user_group.php",
  })
  .data("autocomplete")._renderItem = function( ul, item ) {
  
    //if(document.getElementById("autocomplete_div").style.display == "none")
     /*{document.getElementById("autocomplete_div").style.display = "block";}*/
    
    var inner_html = "<a><div class='autocomplete_image'>"+item.image+"</div><div>"+item.label+"</div>

"+item.desc+"</p></a><div style='clear:both'></div>";
	return $("<li class='autocomplete_li'>")
	.data("item.autocomplete", item)
	.append(inner_html)
	.appendTo($('#autocomplete_div ul'));
  };
 });
</script>

<div id='textarea_share'>
  <div id='textarea_share_l'><input type='text' id='textarea_share_input'/></div>
</div>
<div id='autocomplete_div'><ul class='autocomplete_ul'>[/list]</div>