| S-8 | Securities offered to employees pursuant to employee benefit plans | May 20, 1998 |  Open Securities offered to employees pursuant to employee benefit plans in HTML. Open Securities offered to employees pursuant to employee benefit plans in DOC file. Open Securities offered to employees pursuant to employee benefit plans in PDF file. Open Securities offered to employees pursuant to employee benefit plans in XLS file. |
| 424B2 | Form of prospectus filed in connection with primary offering of securities on a delayed basis | May 13, 1998 | Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in HTML.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in DOC file.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in PDF file.Open Form of prospectus filed in connection with primary offering of securities on a delayed basis in XLS file. |
| POS AM | Post-effective amendment to an S-Type filing | May 4, 1998 | Open Post-effective amendment to an S-Type filing in HTML.Open Post-effective amendment to an S-Type filing in DOC file.Open Post-effective amendment to an S-Type filing in PDF file.Open Post-effective amendment to an S-Type filing in XLS file. |