$tool_info = api_get_tool_information($_GET["id"]);
 $tool_visibility = $tool_info['visibility'];
 $tool_image = $tool_info['image'];
 if (api_get_setting('homepage_view') != 'activity_big') {
     $new_image = Display::return_icon(str_replace('.gif', '_na.gif', $tool_image), null, null, null, null, true);
     $tool_image = Display::return_icon($tool_image, null, null, null, null, true);
 } else {
     $tool_image = $tool_info['image'];
     $tool_image = substr($tool_info['image'], 0, strpos($tool_info['image'], '.')) . '.png';
     $new_image = str_replace('.png', '_na.png', $tool_image);
     $new_image = api_get_path(WEB_IMG_PATH) . 'icons/64/' . $new_image;
     $tool_image = api_get_path(WEB_IMG_PATH) . 'icons/64/' . $tool_image;
     if (!empty($tool_info['custom_icon'])) {
         $tool_image = CourseHome::getCustomIconPath($courseInfo) . $tool_info['custom_icon'];
         $new_image = str_replace('.png', '_na.png', $tool_info['custom_icon']);
         $new_image = CourseHome::getCustomIconPath($courseInfo) . $new_image;
     }
 }
 $requested_image = $tool_visibility == 0 ? $tool_image : $new_image;
 $requested_clase = $tool_visibility == 0 ? 'visible' : 'invisible';
 $requested_message = $tool_visibility == 0 ? 'is_active' : 'is_inactive';
 $requested_view = $tool_visibility == 0 ? 'visible.gif' : 'invisible.gif';
 $requested_visible = $tool_visibility == 0 ? 1 : 0;
 $requested_view = $tool_visibility == 0 ? 'visible.gif' : 'invisible.gif';
 $requested_visible = $tool_visibility == 0 ? 1 : 0;
 //HIDE AND REACTIVATE TOOL
 if ($_GET["id"] == strval(intval($_GET["id"]))) {
     /* -- session condition for visibility
         if (!empty($session_id)) {
            $sql = "select session_id FROM $tool_table WHERE id='".$_GET["id"]."' AND session_id = '$session_id'";
            $rs = Database::query($sql);