add: if (!Event.isLeftClick(evt)) return; 
context:     defaultClick: function (evt) {        var notAfterDrag = !this.performedDrag;        this.performedDrag = false;        return notAfterDrag;    },
meta: 2031	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2031/c92cd6d88a59f79879c73965c26269e13afa25e3/MouseDefaults.js/buggy/lib/OpenLayers/Control/MouseDefaults.js