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EDIT :: bwg.js

function edit_tag(m) {
 var name, slug, tr;
 name = jQuery("#name" + m).html();
 slug = jQuery("#slug" + m).html();
 tr = ' <td id="td_check_'+m+'" ></td> <td id="td_id_'+m+'" ></td> <td id="td_name_'+m+'" class="edit_input"><input id="edit_tagname" name="tagname'+m+'" class="input_th2" type="text" value="'+name+'"></td> <td id="td_slug_'+m+'" class="edit_input"><input id="edit_slug" class="input_th2" name="slug'+m+'" type="text" value="'+slug+'"></td> <td id="td_count_'+m+'" ></td> <td id="td_edit_'+m+'" class="table_big_col"><a class="wd-btn wd-btn-primary wd-btn-icon wd-btn-save button-small" title="'+ bwg_objectL10B.save_tag +'" onclick="save_tag('+m+')" >'+bwg_objectL10B.save_tag+' </a></td><td id="td_delete_'+m+'" class="table_big_col" ></td> ';
 jQuery("#tr_" + m).html(tr);
 jQuery("#td_id_" + m).attr('class', 'table_big_col');
}

function save_tag(tag_id) {
 var tagname=jQuery('input[name=tagname'+tag_id+']').val();
 var slug = jQuery('input[name=slug'+tag_id+']').val();
 var datas = "tagname="+tagname+"&"+"slug="+slug+"&"+"tag_id="+tag_id;
 var td_check,td_name,td_slug,td_count,td_edit,td_delete,massege;
 
 jQuery.ajax({
 type: "POST", 
 url: ajax_url + "=bwg_edit_tag", 
 data: datas, 
 success: function(html) {
 var tagname_slug=html;		
 var array = tagname_slug.split(".");
 if (array[0] == "The slug must be unique.") {
 massege = array[0];
 }
 else {
 massege = bwg_objectL10B.saved;
 jQuery("#td_check_" + tag_id).attr('class', 'table_small_col check-column');
 td_check='<input id="check_'+tag_id+'" name="check_'+tag_id+'" type="checkbox" />';
 jQuery("#td_check_" + tag_id).html(td_check);
 jQuery("#td_id_" + tag_id).attr('class', 'table_small_col');
 jQuery("#td_id_" + tag_id).html(tag_id);
 jQuery("#td_name_" + tag_id).removeClass();
 td_name='<a class="pointer" id="name'+tag_id+'" onclick="edit_tag('+tag_id+')" title="Edit">'+array[0]+'</a>';
 jQuery("#td_name_" + tag_id).html(td_name); 
 jQuery("#td_slug_" + tag_id).removeClass();
 td_slug='<a class="pointer" id="slug'+tag_id+'" onclick="edit_tag('+tag_id+')" title="Edit">'+array[1]+'</a>';
 jQuery("#td_slug_" + tag_id).html(td_slug);
 jQuery("#td_count_" + tag_id).attr('class', 'table_big_col');
 td_count='<a class="pointer" id="count'+tag_id+'" onclick="edit_tag('+tag_id+')" title="Edit">'+array[2]+'</a>';
 jQuery("#td_count_" + tag_id).html(td_count);
 td_edit='<a class="pointer bwg_img_edit" title="Edit" onclick="edit_tag('+tag_id+')" ></a>';
 jQuery("#td_edit_" + tag_id).html(td_edit);

if ((typeof tinyMCE != "undefined") && tinyMCE.activeEditor && !tinyMCE.activeEditor.isHidden() && tinyMCE.activeEditor.getContent) {
    var description = tinyMCE.activeEditor.getContent();
  }
  else {
    var description = jQuery("#description").val();
  }
  var preview_image = jQuery("#preview_image").val();
  var published = jQuery("input[name=published]:checked").val();
  var search_value = jQuery("#search_value").val();
  var current_id = jQuery("#current_id").val();
  var page_number = jQuery("#page_number").val();
  var search_or_not = jQuery("#search_or_not").val();
  var ids_string = jQuery("#ids_string").val();
  var image_order_by = jQuery("#image_order_by").val();
  var asc_or_desc = jQuery("#asc_or_desc").val();
  var image_asc_or_desc = jQuery("#image_asc_or_desc").val();
  // Set cookie for image ordering in admin.
  document.cookie = 'bwg_image_asc_or_desc=' + image_asc_or_desc;
  document.cookie = 'bwg_image_order_by=' + image_order_by;
  
  var image_current_id = jQuery("#image_current_id").val();
  ids_array = ids_string.split(",");
  var tr_count = ids_array.length;
  if (tr_count > bwg_save_count) {
    // Remove items form begin and end of array.
    ids_array.splice(tr_group * bwg_save_count, ids_array.length);
    ids_array.splice(0, (tr_group - 1) * bwg_save_count);
    ids_string = ids_array.join(",");
  }

var post_data = {};
  post_data["bwg_nonce"] = bwg_nonce;
  post_data["name"] = name;
  post_data["slug"] = slug;

post_data["description"] = description;
  post_data["preview_image"] = preview_image;
  post_data["published"] = published;
  post_data["search_value"] = search_value;
  post_data["current_id"] = current_id;
  post_data["page_number"] = page_number;
  post_data["image_order_by"] = image_order_by;
  post_data["asc_or_desc"] = asc_or_desc;
  post_data["image_asc_or_desc"] = image_asc_or_desc;
  post_data["ids_string"] = ids_string;
  post_data["task"] = "ajax_search";
  post_data["ajax_task"] = ajax_task;
  post_data["image_current_id"] = image_current_id;
  post_data["image_width"] = jQuery("#image_width").val();
  post_data["image_height"] = jQuery("#image_height").val();
  post_data["bulk_edit"] = jQuery("#bulk_edit").val();
  post_data["title"] = jQuery("#title").val();
  post_data["redirecturl"] = jQuery("#redirecturl").val();
  post_data["desc"] = jQuery("#desc").val();

jQuery.post(
    jQuery('#' + form_id).attr('action'),
    post_data,

function (data) {
      var str = jQuery(data).find("#current_id").val();
      jQuery("#current_id").val(str);
    }
  ).success(function (data, textStatus, errorThrown) {
    if (tr_count > bwg_save_count * tr_group) {
      spider_ajax_save(form_id, ++tr_group);
      return;
    }
    else {
      var str = jQuery(data).find('#images_table').html();
      jQuery('#images_table').html(str);
      var str = jQuery(data).find('.tablenav.top').html();
      jQuery('.tablenav.top').html(str);
      var str = jQuery(data).find('.tablenav.bottom').html();
      jQuery('.tablenav.bottom').html(str);
      jQuery("#show_hide_weights").val("Hide order column");
      spider_show_hide_weights();
      spider_run_checkbox();

if (ajax_task == 'ajax_apply') {
 jQuery('#message_div').html("" + bwg_objectL10B.saved + "");
 jQuery('#message_div').show();
 }
 else if (ajax_task == 'recover') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.recoverd + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_publish') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.published + ".");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_unpublish') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.unpublished + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_delete') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.deleted + "");
 jQuery('#draganddrop').show();
 }
 else if (!flag && ((ajax_task == 'image_publish_all') || (ajax_task == 'image_unpublish_all') || (ajax_task == 'image_delete_all') || (ajax_task == 'image_set_watermark') || (ajax_task == 'image_recover_all') || (ajax_task == 'image_resize') || (ajax_task == 'resize_image_thumb'))) {
 jQuery('#draganddrop').attr('class','wd_error');
 jQuery('#draganddrop').html("" + bwg_objectL10B.one_item + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_publish_all') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.published + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_unpublish_all') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.unpublished + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_delete_all') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.deleted + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'resize_image_thumb') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.resized + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_set_watermark') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.watermark_set + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_resize') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.resized + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'image_recover_all') {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.reset + "");
 jQuery('#draganddrop').show();
 }
 else if (ajax_task == 'search') {
 jQuery('#message_div').html("");
 jQuery('#message_div').hide();
 }
 else {
 jQuery('#draganddrop').attr('class','wd_updated');
 jQuery('#draganddrop').html("" + bwg_objectL10B.saved + "");
 jQuery('#draganddrop').show();
 }
 if (ajax_task == "ajax_save") {
 
 var $form = jQuery('#' + form_id),
 formAction = $form.attr( "action" );
 
 if ( formAction.indexOf( "?" ) != -1 ) {
 formAction += "&show_pointer=true";
 }
 else {
 formAction += "?show_pointer=true";
 }
 
 $form.attr( "action", formAction );
 
 $form.submit();
 }
 jQuery('#opacity_div').hide();
 jQuery('#loading_div').hide();
 }
 });
 // if (event.preventDefault) {
 // event.preventDefault();
 // }
 // else {
 // event.returnValue = false;
 // }
 return false;
}

// Set value by id.
function spider_set_input_value(input_id, input_value) {
  if (document.getElementById(input_id)) {
    document.getElementById(input_id).value = input_value;
  }
}

// Submit form by id.
function spider_form_submit(event, form_id) {
  if (document.getElementById(form_id)) {
    document.getElementById(form_id).submit();
  }
  if (event.preventDefault) {
    event.preventDefault();
  }
  else {
    event.returnValue = false;
  }
}

// Check if required field is empty.
function spider_check_required(id, name) {
  if (jQuery('#' + id).val() == '') {
    alert(name + '* ' + bwg_objectL10B.bwg_field_required);
    jQuery('#' + id).attr('style', 'border-color: #FF0000;');
    jQuery('#' + id).focus();
    jQuery('html, body').animate({
      scrollTop:jQuery('#' + id).offset().top - 200
    }, 500);
    return true;
  }
  else {
    return false;
  }
}

// Show/hide order column and drag and drop column.
function spider_show_hide_weights() {
 if (jQuery("#show_hide_weights").val() == bwg_objectL10B.bwg_show_order) {
 jQuery(".connectedSortable").css("cursor", "default");
 jQuery("#tbody_arr").find(".handle").hide(0);
 jQuery("#tbody_arr").find(".handles").closest("td").hide(0);
 jQuery("#th_order").show(0);
 jQuery("#tbody_arr").find(".spider_order").show(0);
 jQuery("#show_hide_weights").val(bwg_objectL10B.bwg_hide_order);
 jQuery("#show_hide_weights").attr('title',bwg_objectL10B.bwg_hide_order);
 if (jQuery("#tbody_arr").sortable()) {
 jQuery("#tbody_arr").sortable("disable");
 }
 }
 else {
 jQuery(".connectedSortable").css("cursor", "move");
 var page_number;
 if (jQuery("#page_number") && jQuery("#page_number").val() != '' && jQuery("#page_number").val() != 1) {
 page_number = (jQuery("#page_number").val() - 1) * 20 + 1;
 }
 else {
 page_number = 1;
 }
 jQuery("#tbody_arr").sortable({
 handle:".connectedSortable",
 connectWith:".connectedSortable",
 update:function (event, tr) {
 jQuery("#draganddrop").attr("style", "");
 jQuery("#draganddrop").html("Changes made in this table should be saved.");
 var i = page_number;
 jQuery('.spider_order').each(function (e) {
 if (jQuery(this).find('input').val()) {
 jQuery(this).find('input').val(i++);
 }
 });
 }
 });//.disableSelection();
 jQuery("#tbody_arr").sortable("enable");
 jQuery("#tbody_arr").find(".handle").show(0);
 jQuery("#tbody_arr").find(".handles").closest("td").show(0);
 jQuery("#tbody_arr").find(".handle").attr('class', 'bwg_img_handle handle connectedSortable');
 jQuery("#th_order").hide(0);
 jQuery("#tbody_arr").find(".spider_order").hide(0);
 jQuery("#show_hide_weights").val(bwg_objectL10B.bwg_show_order);
 jQuery("#show_hide_weights").attr('title',bwg_objectL10B.bwg_show_order);
 }
}

// Check all items.
function spider_check_all_items() {
  spider_check_all_items_checkbox();
  // if (!jQuery('#check_all').attr('checked')) {
    jQuery('#check_all').trigger('click');
  // }
}

function spider_check_all(current) {
  if (!jQuery(current).attr('checked')) {
    jQuery('#check_all_items').attr('checked', false);
    jQuery('#draganddrop').hide();
  }
}

// Set uploader to button class.
function spider_uploader(button_id, input_id, delete_id, img_id) {
 if (typeof img_id == 'undefined') {
 img_id = '';
 }
 jQuery(function () {
 var formfield = null;
 window.original_send_to_editor = window.send_to_editor;
 window.send_to_editor = function (html) {
 if (formfield) {
 var fileurl = jQuery('img', html).attr('src');
 if (!fileurl) {
 var exploded_html;
 var exploded_html_askofen;
 exploded_html = html.split('"');
 for (i = 0; i < exploded_html.length; i++) {
 exploded_html_askofen = exploded_html[i].split("'");
 }
 for (i = 0; i < exploded_html.length; i++) {
 for (j = 0; j < exploded_html_askofen.length; j++) {
 if (exploded_html_askofen[j].search("href")) {
 fileurl = exploded_html_askofen[i + 1];
 break;
 }
 }
 }
 if (img_id != '') {
 alert(bwg_objectL10B.bwg_select_image);
 tb_remove();
 return;
 }
 window.parent.document.getElementById(input_id).value = fileurl;
 window.parent.document.getElementById(button_id).style.display = "none";
 window.parent.document.getElementById(input_id).style.display = "inline-block";
 window.parent.document.getElementById(delete_id).style.display = "inline-block";
 }
 else {
 if (img_id == '') {
 alert(bwg_objectL10B.bwg_field_required);
 tb_remove();
 return;
 }
 window.parent.document.getElementById(input_id).value = fileurl;
 window.parent.document.getElementById(button_id).style.display = "none";
 window.parent.document.getElementById(delete_id).style.display = "inline-block";
 if ((img_id != '') && window.parent.document.getElementById(img_id)) {
 window.parent.document.getElementById(img_id).src = fileurl;
 window.parent.document.getElementById(img_id).style.display = "inline-block";
 }
 }
 formfield.val(fileurl);
 tb_remove();
 }
 else {
 window.original_send_to_editor(html);
 }
 formfield = null;
 };
 formfield = jQuery(this).parent().parent().find(".url_input");
 tb_show('', 'media-upload.php?type=image&TB_iframe=true');
 jQuery('#TB_overlay,#TB_closeWindowButton').bind("click", function () {
 formfield = null;
 });
 return false;
 });
}

// Remove uploaded file.
function spider_remove_url(button_id, input_id, delete_id, img_id) {
  if (typeof img_id == 'undefined') {
    img_id = '';
  }
  if (document.getElementById(button_id)) {
    document.getElementById(button_id).style.display = '';
  }
  if (document.getElementById(input_id)) {
    document.getElementById(input_id).value = '';
    document.getElementById(input_id).style.display = 'none';
  }
  if (document.getElementById(delete_id)) {
    document.getElementById(delete_id).style.display = 'none';
  }
  if ((img_id != '') && window.parent.document.getElementById(img_id)) {
    document.getElementById(img_id).src = '';
    document.getElementById(img_id).style.display = 'none';
  }
}

function spider_reorder_items(tbody_id) {
  jQuery("#" + tbody_id).sortable({
    handle:".connectedSortable",
    connectWith:".connectedSortable",
    update:function (event, tr) {
      spider_sortt(tbody_id);
    }
  });
}

function spider_remove_row(tbody_id, event, obj) {
  var span = obj;
  var tr = jQuery(span).closest("tr");
  jQuery(tr).remove();
  spider_sortt(tbody_id);
}

function bwg_enable_disable(display, id, current) {
  jQuery("#" + current).attr('checked', 'checked');
  jQuery("#" + id).css('display', display);
  if(id == 'tr_slideshow_title_position') {
    jQuery("#tr_slideshow_full_width_title").css('display', display);
  }
}

function bwg_popup_fullscreen(num) {
  if (num) {
    jQuery("#tr_popup_dimensions").css('display', 'none');
  }
  else {
    jQuery("#tr_popup_dimensions").css('display', '');
  }
}

function spider_check_isnum(e) {
 var chCode1 = e.which || e.paramlist_keyCode;
 if (chCode1 > 31 && (chCode1 < 48 || chCode1 > 57) && (chCode1 != 46) && (chCode1 != 45)) {
 return false;
 }
 return true;
}

function bwg_change_theme_type(type) {
  var button_name = jQuery("#button_name").val();
  jQuery("#Thumbnail").hide();
  jQuery("#Masonry").hide();
  jQuery("#Mosaic").hide();
  jQuery("#Slideshow").hide();
  jQuery("#Compact_album").hide();
  jQuery("#Extended_album").hide();
  jQuery("#Masonry_album").hide();
  jQuery("#Image_browser").hide();
  jQuery("#Blog_style").hide();
  jQuery("#Carousel").hide();
  jQuery("#Lightbox").hide();
  jQuery("#Navigation").hide();
  jQuery("#" + type).show();
  jQuery("#type_menu").show();
  jQuery(".spider_fieldset").show();
  jQuery("#current_type").val(type);

jQuery("#type_Thumbnail").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_Masonry").attr("style", "background-color: #F4F4F4; opacity: 0.4; filter: Alpha(opacity=40);");
  jQuery("#type_Mosaic").attr("style", "background-color: #F4F4F4; opacity: 0.4; filter: Alpha(opacity=40);");
  jQuery("#type_Slideshow").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_Compact_album").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_Extended_album").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_Masonry_album").attr("style", "background-color: #F4F4F4; opacity: 0.4; filter: Alpha(opacity=40);");
  jQuery("#type_Image_browser").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_Blog_style").attr("style", "background-color: #F4F4F4; opacity: 0.4; filter: Alpha(opacity=40);");
  jQuery("#type_Carousel").attr("style", "background-color: #F4F4F4; opacity: 0.4; filter: Alpha(opacity=40);");
  jQuery("#type_Lightbox").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_Navigation").attr("style", "background-color: #F4F4F4;");
  jQuery("#type_" + type).attr("style", "background-color: #CFCBCB;");
}

function bwg_gallery_type() {
  var response = true;
  var value = jQuery('#gallery_type').val();
  response = bwg_change_gallery_type(value, 'change');
  return response;
}

/*returns false if user cancels or impossible to do.*/
/*
   type_to_set:'' or 'instagram'
*/
function bwg_change_gallery_type(type_to_set, warning_type) {
  
  warning_type = (typeof warning_type === "undefined") ? "default" : warning_type;

if (type_to_set == 'instagram') {
    jQuery('#gallery_type').val('instagram');
    jQuery('#tr_instagram_post_gallery').show();
    jQuery('#tr_gallery_source').show();
    jQuery('#tr_update_flag').show();
    jQuery('#tr_autogallery_image_number').show();
    jQuery('#tr_instagram_gallery_add_button').show();

/*hide features of only standard gallery*/   
    jQuery('.spider_delete_button').hide();
    jQuery('#spider_setwatermark_button').hide();
    jQuery('#spider_resize_button').hide();
    jQuery('#spider_reset_button').hide();
    jQuery('#content-add_media').hide();
    jQuery('#show_add_embed').hide();
    jQuery('#show_bulk_embed').hide();
  }
  else {
    var ids_string = jQuery("#ids_string").val();
    ids_array = ids_string.split(",");
    var tr_count = ids_array[0]=='' ? 0: ids_array.length;  
    if(tr_count != 0){
      switch(warning_type) {
        case 'default':
          var allowed = confirm(bwg_objectL10B.default_warning);
          break;
        case 'change':
          var allowed = confirm(bwg_objectL10B.change_warning);
          break;
        default:
          var allowed = confirm(bwg_objectL10B.other_warning);
      }/*endof switch*/

if (allowed == false) {
        jQuery('#gallery_type').val('instagram');
        return false;
      }
    }
  
    jQuery('#gallery_type').val('');
    jQuery('#tr_instagram_post_gallery').hide();
    jQuery('#tr_gallery_source').hide();

jQuery('#tr_update_flag').hide();
    jQuery('#tr_autogallery_image_number').hide();
    jQuery('#tr_instagram_gallery_add_button').hide();

/*show features of only standard gallery*/
    jQuery('.spider_delete_button').show();
    jQuery('#spider_setwatermark_button').show();
    jQuery('#spider_resize_button').show();
    jQuery('#spider_reset_button').show();
    jQuery('#content-add_media').show();
    jQuery('#show_add_embed').show();
    jQuery('#show_bulk_embed').show();
  }
  return true;
}

function bwg_is_instagram_gallery() {

var value = jQuery('#gallery_type').val();
  if(value == 'instagram'){
    return true;
  }
  else{
    return false;
  }
}

/**
 *  
 *  @param reset:bool true if reset to standard in case of not empty
 *  @param message:bool true if to alert that not empty
 *  @return true if empty, false if not empty
 */

function bwg_convert_seconds(seconds) {
  var sec_num = parseInt(seconds, 10);
  var hours   = Math.floor(sec_num / 3600);
  var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
  var seconds = sec_num - (hours * 3600) - (minutes * 60);

if (minutes < 10 && hours != 0) {minutes = "0" + minutes;}
 if (seconds < 10) {seconds = "0" + seconds;}
 var time = (hours != 0 ? hours + ':' : '') + minutes + ':' + seconds;
 return time;
}

function bwg_convert_date(date, separator) {
  var m_names = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
  date = date.split(separator);
  var dateArray = date[0].split("-");
  return dateArray[2] + " " + m_names[dateArray[1] - 1] + " " + dateArray[0] + ", " + date[1].substring(0, 5);
}

/* EMBED handling */
function bwg_get_embed_info(input_id) {
  jQuery('#opacity_div').show();
  jQuery('#loading_div').show();

var url = encodeURI(jQuery("#" + input_id).val());  
  if (!url) {
    alert(bwg_objectL10B.bwg_enter_url);
    return '';
  }
  var filesValid = [];
  var data = {
    'action': 'addEmbed',
    'URL_to_embed': url,
    'async':true
  };

// get from the server data for the url. Here we use the server as a proxy, since Cross-Origin Resource Sharing AJAX is forbidden.
  jQuery.post(ajax_url, data, function(response) {
    if(response == false){
      alert(bwg_objectL10B.bwg_cannot_response);
      jQuery('#opacity_div').hide();
      jQuery('#loading_div').hide();
      return '';
    }
    else{

var index_start = response.indexOf("WD_delimiter_start");
      var index_end = response.indexOf("WD_delimiter_end");
      if(index_start == -1 || index_end == -1){
        alert(bwg_objectL10B.bwg_something_wrong);
        jQuery('#opacity_div').hide();
        jQuery('#loading_div').hide();
      
        return '';
      }

/*filter out other echoed characters*/
      /*18 is the length of "wd_delimiter_start"*/
      response = response.substring(index_start+18,index_end);

response_JSON = jQuery.parseJSON(response);
        /*if indexed array, it means there is error*/
      if(typeof response_JSON[0] !== 'undefined'){
        alert(bwg_objectL10B.bwg_error + jQuery.parseJSON(response)[1]);
        jQuery('#opacity_div').hide();
        jQuery('#loading_div').hide();
        return '';
      }
      else{
        fileData = response_JSON;
        filesValid.push(fileData);
        bwg_add_image(filesValid);
        document.getElementById(input_id).value = '';
        jQuery('#opacity_div').hide();
        jQuery('#loading_div').hide();
        return 'ok';
      }
    }
    return ''; 
   
  });
  return 'ok'; 
   
}

CANCEL

// SYSTEM PANEL //

EDIT :: bwg.js