rem: prefString = gPrefs.getComplexValue("mailnews.labels.description." + labelID,  Components.interfaces.nsIPrefLocalizedString); 
add: prefString = gPrefs.getComplexValue(kLabelPrefs + labelID, Components.interfaces.nsIPrefLocalizedString).data; 
context: function setLabelAttributes(labelID, menuItemID){  var prefString;  prefString = gPrefs.getComplexValue("mailnews.labels.description." + labelID,  Components.interfaces.nsIPrefLocalizedString);  document.getElementById(menuItemID).setAttribute("label", prefString);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/0b62e15d014d717e60498db77ccfdef3806059d3/msgViewPickerOverlay.js/clean/mailnews/extensions/mailviews/resources/content/msgViewPickerOverlay.js