rem: function is_collapsed(element) 
add: function is_collapsed(element) 
context: function is_collapsed(element) {  return (element.getAttribute('state') == 'collapsed');}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/634044202ad0e89ed5e63759bb283c8d4f090335/mail3PaneWindowCommands.js/clean/mail/base/content/mail3PaneWindowCommands.js