add: return buttonPressed; 
context: function PromptSendMessagesOffline(){  InitPrompts();  if (gPromptService) {    var buttonPressed = {value:0};    var checkValue= {value:false};    gPromptService.confirmEx(window,                             gOfflinePromptsBundle.getString('sendMessagesOfflineWindowTitle'),                             gOfflinePromptsBundle.getString('sendMessagesOfflineLabel'),                            (gPromptService.BUTTON_TITLE_IS_STRING * gPromptService.BUTTON_POS_0) +                            (gPromptService.BUTTON_TITLE_CANCEL * gPromptService.BUTTON_POS_1),                            gOfflinePromptsBundle.getString('sendMessagesOfflineGoButtonLabel'),                            null, null, null, checkValue, buttonPressed);    if(buttonPressed) {      return buttonPressed.value;    }  }}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/c3b4db921a0ab444658a6af9e53ee67d1ebea5a0/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js