rem: if( !dataObject.dataEls ) 
add: if( !( "dataEls" in dataObject ) ) 
context: function GetFields()  {    var dataObject = parent.hPrefWindow.wsm.dataManager.pageData["chrome://communicator/content/pref/pref-fonts.xul"];    // store data for language independent widgets    var lists = ["selectLangs", "proportionalFont"];    for( var i = 0; i < lists.length; i++ )      {        if( !dataObject.dataEls )          dataObject.dataEls = [];        dataObject.dataEls[ lists[i] ] = [];        dataObject.dataEls[ lists[i] ].value = document.getElementById( lists[i] ).value;      }   dataObject.defaultFont = document.getElementById( "proportionalFont" ).value;   dataObject.fontDPI = document.getElementById( "screenResolution" ).value;   dataObject.useDocFonts = document.getElementById( "browserUseDocumentFonts" ).checked ? 1 : 0;    // save current state for language dependent fields and store    saveState();    dataObject.languageData = languageData;    return dataObject;  }
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/e774059904a47d9f619d269b6b4d3119ae88d797/pref-fonts.js/buggy/xpfe/components/prefwindow/resources/content/pref-fonts.js