rem: editorShell.editor.SetFlags(nsIPlaintextEditor.eEditorMailMask); 
add: var flags = new Object; editorShell.editor.GetFlags(flags); editorShell.editor.SetFlags(flags.value ^ nsIPlaintextEditor.eEditorReadonlyMask); 
context: function enableEditableFields(){  editorShell.editor.SetFlags(nsIPlaintextEditor.eEditorMailMask);  var enableElements = document.getElementsByAttribute("disableonsend", "true");  for (i=0;i<enableElements.length;i++)  {    enableElements[i].removeAttribute('disabled');  }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/534ed8ad12ff974ced477897c43be3458772e441/MsgComposeCommands.js/clean/mailnews/compose/resources/content/MsgComposeCommands.js