function wysiwyg_textarea($name, $value, $config = "NukeUser", $cols = 50, $rows = 10) {
   global $advanced_editor;
   # Don't waste bandwidth by loading WYSIWYG editor for crawlers
   if ($advanced_editor == 0 or !isset($_COOKIE)) {
       echo "<textarea name=\"$name\" cols=\"$cols\" rows=\"$rows\">$value

function wysiwyg_textarea($name, $value, $config = "NukeUser", $cols = 50, $rows = 10) {
   global $advanced_editor;
   # Don't waste bandwidth by loading WYSIWYG editor for crawlers
   if ($advanced_editor == 0 or !isset($_COOKIE)) {
       echo "<textarea name=\"$name\" cols=\"$cols\" rows=\"$rows\">$value</textarea>";
   } else {
      @include_once(INCLUDE_PATH."includes/FCKeditor/fckeditor.php");
      $oFCKeditor = new FCKeditor($name) ;
      $oFCKheight = $rows * 20;
      $oFCKeditor->Height = "$oFCKheight";
      $oFCKeditor->ToolbarSet   = "$config" ;
      $oFCKeditor->InstanceName = "$name" ;
      $oFCKeditor->Value = "$value" ;
      $oFCKeditor->Create() ;   
   }
}

create fckeditor

PHP