rem: var mimeLiteral = gRDF.GetLiteral(gMIMEField.value); 
add: var mimeLiteral = gRDF.GetLiteral(aMIMEType); 
context: function mimeHandlerExists(aMIMEType){  var valueProperty = gRDF.GetResource(NC_RDF("value"));  var mimeSource = gRDF.GetResource(MIME_URI(aMIMEType));  var mimeLiteral = gRDF.GetLiteral(gMIMEField.value);  return gDS.HasAssertion(mimeSource, valueProperty, mimeLiteral, true);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/41260d0caec8731e477cc06f128e78c24f7d926c/overrideHandler.js/buggy/suite/common/pref/overrideHandler.js