rem: gDBView = null; 
add: if (gDBView) { gDBView.close(); gDBView = null; } 
context: function ClearThreadPane(){  gDBView = null; }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/cdf54dc7fa674e333e2af36b4f68d060a9352309/commandglue.js/clean/mailnews/base/resources/content/commandglue.js