rem: getItemData: 
add: getItemData: 
context:         getItemData:            function ( aPageTag, aItemID )            {              if( !(aItemID in this.pageData[aPageTag]) )                this.pageData[aPageTag][aItemID] = [];              return this.pageData[aPageTag][aItemID];            }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/eaa6754a0a946375badf1165b3e4af3999e4b03c/nsWidgetStateManager.js/buggy/xpfe/global/resources/content/nsWidgetStateManager.js