rem: document.getElementById("msgSubject").setAttribute('disabled', 'true'); 
context: function disableEditableFields(){  editorShell.editor.SetFlags(plaintextEditor.eEditorReadonlyMask);  document.getElementById("msgSubject").setAttribute('disabled', 'true');  var disableElements = document.getElementsByAttribute("disableonsend", "true");  for (i=0;i<disableElements.length;i++)  {    disableElements[i].setAttribute('disabled', 'true');  }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/a91345fad06eccde652cc2d1131cf48f069281a5/MsgComposeCommands.js/clean/mailnews/compose/resources/content/MsgComposeCommands.js