$("#vinanghinguyen_images_bbocde").val('');
$("#vinanghinguyen_images_bbocde").val(vinanghinguyen_final_bbcode);

我想在添加值之前清除文本区域id =“vinanghinguyen_images_bbocde”。但textarea添加添加添加和值和不清楚。我想在添加价值之前清除它

我使用uploadify这里是我的功能

<script type="text/javascript">

$(document).ready(function() {

vinanghinguyen_bbcode='';

vinanghinguyen_final_bbcode='';

vinanghinguyen_link='';

vinanghinguyen_final_derect_link='';
response = '';

  $('#file_upload').uploadify({

    'uploader'  : '{SITE_FULL_URL}/uploadify/uploadify.swf','script'    : '{SITE_FULL_URL}/uploadify/uploadify.PHP','cancelImg' : '{SITE_FULL_URL}/uploadify/cancel.png','folder'    : 'data/picture_upload/2011','auto'      : false,'multi'       : true,'buttonText'  : '','onComplete' : function(event,ID,fileObj,response,data) {

     vinanghinguyen_bbcode='[IMG]'+'http://cnttvnn.com'+response+'[/IMG]'+'\n';

     vinanghinguyen_final_bbcode=vinanghinguyen_final_bbcode+vinanghinguyen_bbcode;

     vinanghinguyen_derect_link='http://cnttvnn.com'+response+'\n';
     vinanghinguyen_final_derect_link=vinanghinguyen_final_derect_link+vinanghinguyen_derect_link;
    $("#vinanghinguyen_images_bbocde").val('').val(vinanghinguyen_final_bbcode);

//  $("#vinanghinguyen_images_derect_link").val(vinanghinguyen_final_derect_link);

 $("#vinanghinguyen_result").show();

  $(".uploadifyQueue").height(5);



  },'onSelect'    : function(event,fileObj) {
  $("#vinanghinguyen_images_bbocde").val('');
  $("#vinanghinguyen_result").hide();
  $(".uploadifyQueue").height(315);

},});

});
</script>