add: this.relativePosition = this.calculateRelativePosition(px);  
context:     moveTo: function(px) {        var newPx = this.calculateNewPx(px);                var newArguments = new Array(newPx);                OpenLayers.Popup.prototype.moveTo.apply(this, newArguments);    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/ebc60202b7aac0f54f6c5cbe3c300ecc6635d9a6/Anchored.js/buggy/lib/OpenLayers/Popup/Anchored.js