rem: pref_string = null; 
add: pref_string = ""; 
context: function UpdateSavePrefString(){  var num_languages = 0;  pref_string = null;  for (var item = active_languages_treeroot.firstChild; item != null; item = item.nextSibling) {    var row  =  item.firstChild;    var cell =  row.firstChild;    var languageid = cell.getAttribute('id');    if (languageid.length > 1) {          num_languages++;      //separate >1 languages by commas      if (num_languages > 1) {        pref_string = pref_string + "," + " " + languageid;      } else {        pref_string = languageid;      } //if    } //if  }//for  active_languages.setAttribute("prefvalue", pref_string);}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/d6e5dbf0f3a3f1164fb75cb2b6de2182ae0db1e3/pref-languages.js/clean/suite/common/pref/pref-languages.js