rem: getDatasource : function() 
add: getDatasource : function() 
context:   getDatasource : function()   {    return this.dsource;  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/ad31f8ed11639845cff55b2a989a1a6243a89a9b/rdfBase.js/buggy/calendar/resources/content/jslib/rdf/rdfBase.js