rem: OpenThread(treeitem); 
add: msgNavigationService.OpenTreeitemAndDescendants(treeitem); 
context: function ThreadPaneOnClick(event){    var targetclass = event.target.getAttribute('class');    debug('targetclass = ' + targetclass + '\n');    if (targetclass == 'twisty') {        // The twisty is nested three below the treeitem:        // <treeitem>        //   <treerow>        //     <treecell>        //       <box> <!-- anonymous -->        //         <titledbutton class="twisty"> <!-- anonymous -->        var treeitem = event.target.parentNode.parentNode.parentNode.parentNode;		var open = treeitem.getAttribute('open');		if(open == "true")		{			//open all of the children of the treeitem			OpenThread(treeitem);		}		dump('clicked on a twisty\n');    }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/4170fc4b9236a536c31f600a2e1c72350686521c/msgMail3PaneWindow.js/clean/mailnews/base/resources/content/msgMail3PaneWindow.js