rem: var editBox = document.getElementById("editMessageBox"); if (editBox) editBox.collapsed = false; 
add:  var msgHdr; try { msgHdr = gDBView.hdrForFirstSelectedMessage; } catch (ex) { return; }  if (IsSpecialFolder(msgHdr.folder, MSG_FOLDER_FLAG_DRAFTS, true)) document.getElementById("editMessageBox").collapsed = false; 
context: function ShowEditMessageButton() {  var editBox = document.getElementById("editMessageBox");  if (editBox)    editBox.collapsed = false;} 
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/fc891188b7812d8f526c0c3d344f68564d4eda39/msgHdrViewOverlay.js/clean/mail/base/content/msgHdrViewOverlay.js