rem: this.selections = new Ext.util.MixedCollection(false, function(o){ return o.id; }); 
add: tb.el.on('click', function(e){ e.preventDefault(); }); 
context:     this.selections = new Ext.util.MixedCollection(false, function(o){        return o.id;    });
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