| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 10/01/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/27/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/07/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/16/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/12/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/10/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/13/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/08/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/08/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/08/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

