add: this.clickHandler.activate(); 
context:     activate: function() {        this.dragPan.activate();        this.wheelHandler.activate();        this.zoomBox.activate();        return OpenLayers.Control.prototype.activate.apply(this,arguments);    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/2e507b68b74271f1aefa70f1687e4a78c8c6f5e0/Navigation.js/clean/lib/OpenLayers/Control/Navigation.js