function getObject(id){      var obj = null;      if(document.getElementById)           obj = document.getElementById(id);      else if(document.all)           obj = document.all[id];      else if(document.layers)           obj = document.layers[id];      return obj;}function toggleObject(id)      {      var obj = getObject(id);      if(!obj)           return false;      if(obj.style.display == 'none')      {           obj.style.display = '';      }      else      {           obj.style.display = 'none';      }      return true;} 