rem: outlinerBody.setAttribute("ref", "NC:HistoryRoot"); 
add: outliner.setAttribute("ref", "NC:HistoryRoot"); 
context: function GroupBy(groupingType){    var outlinerBody = document.getElementById("historyOutlinerBody");    switch(groupingType) {    case "none":        outlinerBody.setAttribute("ref", "NC:HistoryRoot");        break;    case "site":        // xxx for now        outlinerBody.setAttribute("ref", "NC:HistoryByDate");        break;    case "day":    default:        outlinerBody.setAttribute("ref", "NC:HistoryByDate");        break;    }    gPrefService.setCharPref("browser.history.grouping", groupingType);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/ff7ad62083796049d30def52b277d939d4221d4d/history.js/clean/xpfe/components/history/resources/history.js