add: ClearEmailField(msgPaneData.ReplyToValue);  
context:     onEndHeaders: function()     {      // WARNING: This is the ONLY routine inside of the message Header Sink that should       // trigger a reflow!            if (this.NotifyClearAddresses != undefined)        NotifyClearAddresses();      // (1) clear out the email fields for to, from, cc....      ClearEmailField(msgPaneData.FromValue);      ClearEmailFieldWithButton(msgPaneData.ToValueShort);      ClearEmailFieldWithButton(msgPaneData.CcValueShort);      ClearEmailFieldWithButton(msgPaneData.ToValueLong);      ClearEmailFieldWithButton(msgPaneData.CcValueLong);      // be sure to re-hide the toggle button, we'll re-enable it later if we need it...      msgPaneData.ToValueToggleIcon.setAttribute('collapsed', 'true');      msgPaneData.CcValueToggleIcon.setAttribute('collapsed', 'true');      //hdrViewSetVisible(msgPaneData.ToValueToggleIcon, false);      //hdrViewSetVisible(msgPaneData.CcValueToggleIcon, false);            ShowMessageHeaderPane();      UpdateMessageHeaders();    },
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/fb830fab78d71a14a820540aeda553f3b547eab9/msgHdrViewOverlay.js/clean/mailnews/base/resources/content/msgHdrViewOverlay.js