rem: if (this.onPostClose) 
add: }  if ("onPostClose" in this) 
context: function tovr_close (){    if (!this.isContainerOpen)        return;        this.isContainerOpen = false;    var delta = 1 - this.visualFootprint;    this.visualFootprint += delta;    if (this.parentRecord)        this.parentRecord.onVisualFootprintChanged(this.calculateVisualRow() + 1,                                                   delta);    if (this.onPostClose)        this.onPostClose();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/89326cbcdc6feb4eef3ffc00bb488c9640e8dd81/outliner-utils.js/clean/extensions/venkman/resources/content/outliner-utils.js