rem: var d = Ext.get(document); 
add: var d = Ext.getDoc(); 
context:         this.on("mousedown", function(){            Ext.fly(dom, '_internal').addClass(className);            var d = Ext.get(document);            var fn = function(){                Ext.fly(dom, '_internal').removeClass(className);                d.removeListener("mouseup", fn);            };            d.on("mouseup", fn);        });
meta: 2891	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2891/d109eea1e59fbb030ac98e95f181f72da9611a48/ext-all-debug.js/buggy/gemma-web/src/main/webapp/scripts/ext/ext-all-debug.js