rem: if (gOnLoadCalled) return; 
add: if (document.getElementById('viewPicker')) { window.addEventListener("unload", RemoveLabelPrefListener, false);  AddLabelPrefListener(); 
context: function viewPickerOnLoad(){  if (gOnLoadCalled) return;  // hide the advanced search button  var searchButton = document.getElementById('advancedButton');  if (searchButton)  {    searchButton.setAttribute('collapsed', true);    FillLabelValues();    gOnLoadCalled = true;    refreshCustomMailViews(-1);  }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/cb8e852c5bbce0756cb2afd1d40c14ebf1a6f8ae/msgViewPickerOverlay.js/clean/mailnews/extensions/mailviews/resources/content/msgViewPickerOverlay.js