add: document.commandDispatcher.advanceFocusIntoSubtree(theButton); 
context: function showPanel(panelId) {    //hide other sidebar panels and show the panel name taken in.    helpSearchPanel.setAttribute("hidden", "true");    helpTocPanel.setAttribute("hidden", "true");    helpIndexPanel.setAttribute("hidden", "true");    helpGlossaryPanel.setAttribute("hidden", "true");    var thePanel = document.getElementById(panelId + "-panel");    thePanel.setAttribute("hidden","false");    //remove the selected style from the previous panel selected.    var theButton = document.getElementById(panelId + "-btn");    document.getElementById("help-glossary-btn").removeAttribute("selected");    document.getElementById("help-index-btn").removeAttribute("selected");    document.getElementById("help-search-btn").removeAttribute("selected");    document.getElementById("help-toc-btn").removeAttribute("selected");    //add the selected style to the correct panel.    theButton.setAttribute("selected", "true");}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/e877c267f4ca2e54c05bb6b6328ad735e98d9c17/help.js/clean/toolkit/components/help/content/help.js