Why put page two CKEditor3.41 Contrl,While No Upload Image?

Why put page two CKEditor3.41 Contrl,Will not to Upload Image?
The code:

        var editor1 = CKEDITOR.replace('txt1', {
            filebrowserUploadUrl: url1,
            filebrowserImageUploadUrl: url2,
            filebrowserFlashUploadUrl: url3,
            enterMode: 3, shiftEnterMode: 2, width: '830px', height: '250px'
        });

        var editor12 = CKEDITOR.replace('txt2, {
            filebrowserUploadUrl: url1,
            filebrowserImageUploadUrl: url2,
            filebrowserFlashUploadUrl: url3,
            enterMode: 3, shiftEnterMode: 2, width: '830px', height: '250px'
        });

Uploading image file whill Error:
Error MSG: 对象不支持此属性或方法 image.js, 行465 字符23

   function setUrl( fileUrl, data )
   {
      var dialog = this._.filebrowserSe.getDialog(), // Error this._.filebrowserSe is "undefined"
         targetInput = this._.filebrowserSe[ 'for' ],
         onSelect = this._.filebrowserSe.filebrowser.onSelect;

      if ( targetInput )
         dialog.getContentElement( targetInput[ 0 ], targetInput[ 1 ] ).reset();

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