rem: headerName = headerName.toLowerCase(); currentHeaderData[headerName] = headerValue; if (headerName == "from") 
add: lowerCaseHeaderName = headerName.toLowerCase(); var foo = new Object; foo.headerValue = headerValue; foo.headerName = headerName; currentHeaderData[lowerCaseHeaderName] = foo; if (lowerCaseHeaderName == "from") 
context:     handleHeader: function(headerName, headerValue)     {      // WARNING: if you are modifying this function, make sure you do not do *ANY*      // dom manipulations which would trigger a reflow. This method gets called       // for every rfc822 header in the message being displayed. If you introduce a reflow      // you'll be introducing a reflow for every time we are told about a header. And msgs have      // a lot of headers. Don't do it =)....Move your code into OnEndHeaders which is only called      // once per message view.      // for consistancy sake, let's force all header names to be lower case so      // we don't have to worry about looking for: Cc and CC, etc.      headerName = headerName.toLowerCase();      currentHeaderData[headerName] = headerValue;      if (headerName == "from")      {        if (headerValue && abAddressCollector)          abAddressCollector.collectUnicodeAddress(headerValue);        }     },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d33cdc2c68ba2b426f1de4ba45d9a97e70678cad/msgHdrViewOverlay.js/clean/mailnews/base/resources/content/msgHdrViewOverlay.js