add: 3 in prefSpecs[i] ? prefSpecs[i][3] : null, null, 
context: function pm_addprefs(prefSpecs){    for (var i = 0; i < prefSpecs.length; ++i)    {        this.addPref(prefSpecs[i][0], prefSpecs[i][1],                     2 in prefSpecs[i] ? prefSpecs[i][2] : null);    }}
meta: 1567	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1567/386550f4cdd3cae9c7c46bdcfca817d282b5ddfa/pref-manager.js/clean/js/lib/pref-manager.js