add: if (!Event.isLeftClick(evt)) return; 
context:     defaultClick: function (evt) {        var notAfterDrag = !this.performedDrag;        this.performedDrag = false;        return notAfterDrag;    },
meta: 4411	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4411/2b5f13ae0eea826ef41a516d5c3941754bc629f9/MouseDefaults.js/clean/lib/OpenLayers/Control/MouseDefaults.js