rem: document.getElementById("displayDeck").selectedPanel = document.getElementById("threadPaneBox"); 
add: document.getElementById("displayDeck").selectedPanel = document.getElementById("threadPaneBox"); 
context: function ShowThreadPane(){    document.getElementById("displayDeck").selectedPanel =         document.getElementById("threadPaneBox");}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/ced2e0fdd41a8ca3d991a8a2e0d6e64a507d5333/mailWindow.js/buggy/mail/base/content/mailWindow.js