I do this OpenLayers.Control.SelectFeature.prototype.myDownfeature = function() { //your code this.downfeature() } But this only works if you can allow a function rename. -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/overwriting-functions-tp1825571p5345913.html Sent from the OpenLayers Users mailing list archive at Nabble.com.