rem: if (prefList) 
add: if (prefList.search(/\S/) != -1) 
context: function loadList(list){    var gList = document.getElementById("czInitial" + list);        var prefList = gList.getAttribute("prefvalue");        if (prefList)    {        var items = prefList.split(/\s*;\s*/);        for (i in items)            listAddItem(list, items[i]);    }        listUpdateButtons(list);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/fa359690d17fc0358c5ed06036e22e12abc609c5/startup.js/clean/extensions/irc/xul/content/prefpanel/startup.js