context: proto._oncaptionmousedown = function(e){  if (e.isNotLeftButton() || !this.getMoveable()) {    return;  };    // Enable capturing  this._captionbar.setCapture(true);    // Measuring offsets  this._dragSession = {    offsetX : e.getPageX() - this.getComputedPageBoxLeft(),    offsetY : e.getPageY() - this.getComputedPageBoxTop()  };};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/3cf914e288956daee0598f5709e2fa9cf057b56d/QxWindow.js/buggy/qooxdoo/source/script/widgets/QxWindow.js