context: qx.Proto.getPreviousVisibleSibling = function(){  if(!this._hasParent) {    return null;  }  var vChildren = this.getParent().getVisibleChildren();  return vChildren[vChildren.indexOf(this) - 1];}
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/32797ee18a2c92a797417cb1392f24fa90943b97/Widget.js/buggy/qooxdoo/frontend/framework/source/class/qx/ui/core/Widget.js