rem: content.defaultCharacterset = getMarkupDocumentViewer().defaultCharacterSet; 
add: content.wrappedJSObject.defaultCharacterset = getMarkupDocumentViewer().defaultCharacterSet; 
context: function checkForDirectoryListing(){  if ( "HTTPIndex" in content &&       content.HTTPIndex instanceof Components.interfaces.nsIHTTPIndex ) {    content.defaultCharacterset = getMarkupDocumentViewer().defaultCharacterSet;  }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/6941a16b76cb3356e621385f5d54a57dc50b49b5/browser.js/clean/browser/base/content/browser.js