Spreadsheet Dojo Widget

http://64.201.107.34/tremend/spreadsheet/1/test_spreadsheet.htm

   *  Based on Toolbar and TabContainer widgets
   * Keyboard cell navigation
   * Column, row resizing
   * Cell, column and row selection
   * Cell formatting (font, font size, bold, italic, underline, color, background color)
   * Sheet management (rename, delete, new)
   * Functions (22 math functions, 6 string functions)