rem: case "day": 
add: case "none": outlinerBody.setAttribute("ref", "NC:HistoryRoot"); break; case "site":  
context: function GroupBy(groupingType){    var outlinerBody = document.getElementById("historyOutlinerBody");    switch(groupingType) {    case "day":        outlinerBody.setAttribute("ref", "NC:HistoryByDate");        break;    case "site":        outlinerBody.setAttribute("ref", "find:groupby=hostname");        break;    case "none":        outlinerBody.setAttribute("ref", "NC:HistoryRoot");        break;    }    gPrefService.setCharPref("browser.history.grouping", groupingType);}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/dab77440a023002d7730459b7757f7ff8d1c3b7d/history.js/buggy/suite/common/history/history.js