rem: proto._evalButton = function() { 
add: proto._evalButton = function() { 
context:   proto._evalButton = function() {    var b = this._domEvent.button;    return b == 0 ? "left" : b == 2 ? "right" : b == 1 ? "middle" : null;  };
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/d0984a49e5708d61cfe1e6165e1e198760df5324/QxMouseEvent.js/buggy/qooxdoo/source/script/events/QxMouseEvent.js