var vanishDiv = 0;

function vanish(id) {
                        vanishDiv = document.getElementById(id);
                        if (vanishDiv.style.display == 'block') {
                                                              vanishDiv.style.display = 'none';
                                                              return;
                                                              }
/*                        else {
                              if (vanishDiv.style.display == 'none') {
                                                                    vanishDiv.style.display = 'block';
                                                                    }
                              }
*/                        
                      }