add: dump("Exception caught in 'backupData': " + ex + "\n"); 
context:     backupData: function (categoryNameFix) {        var currentColor;        try {            currentColor = categoryPrefBranch.getCharPref(categoryNameFix);        } catch (ex) {            currentColor = "##NEW";        }        for (var i=0; i < parent.backupPrefList.length; i++) {            if (categoryNameFix == parent.backupPrefList[i].name) {                return;            }        }        parent.backupPrefList[parent.backupPrefList.length] =            { name : categoryNameFix, color : currentColor };    },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d637ae6ad43674a7a647b13f316377eb2b3f34c2/categories.js/clean/calendar/base/content/preferences/categories.js