How to use the catalog.gxe.dialog.invalidResponse function in catalog

var hndlError = dojo.hitch(this,function(oErrorx,ioArgs){
      if ((typeof(oError) == "undefined") || (oError == null)) {
        oError = new Error(this.i18n["catalog.gxe.dialog.invalidResponse"]);
      } 
      if ((typeof(params) != "undefined") && (params != null) &&
          (typeof(params.error) == "function")) {
        params.error(oError,ioArgs);
      } else {
        console.log(oError);
      }
    });

load: dojo.hitch(this, function (responseObject, ioArgs) {
                        if ((typeof (responseObject) == "undefined") || (responseObject == null)) {
                            handleError(oThis.i18n["catalog.gxe.dialog.invalidResponse"]);
                        } else {
                            var oError = responseObject.error;
                            if ((typeof (oError) != "undefined") && (oError != null)) {
                                handleError(oError.message);
                            } else {
                                var cfgDefinition = responseObject.cfgDefinition;
                                if ((typeof (cfgDefinition) == "undefined") || (cfgDefinition == null)) {
                                    handleError(oThis.i18n["catalog.gxe.dialog.invalidResponse"]);
                                } else {
                                    oThis._prepForEditorLoad();
                                    //handleError(oThis.i18n["catalog.gxe.dialog.invalidResponse"]);
                                    //return;
                                    gxe.cfg.initialize(cfgDefinition);
                                    var elHtmlParent = dojo.byId("gxeDocument");
                                    elHtmlParent.style.display = "none";
                                    oThis.gxeContext.buildUI(cfgDefinition, elHtmlParent, null);

load: dojo.hitch(this, function (responseObject, ioArgs) {
                if ((typeof (responseObject) == "undefined") || (responseObject == null)) {
                    setDetails(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                } else {
                    var oError = responseObject.error;
                    if ((typeof (oError) != "undefined") && (oError != null)) {
                        setDetails(oError.message);
                    } else {
                        var sInnerHtml = responseObject.details;
                        if ((typeof (sInnerHtml) == "undefined") || (sInnerHtml == null)) {
                            setDetails(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                        } else {
                            setDetailsHtml(sInnerHtml);
                        }
                    }
                }
                this._changeMode("view");
            })
        });

load: dojo.hitch(this, function (responseObject, ioArgs) {
                if ((typeof (responseObject) == "undefined") || (responseObject == null)) {
                    addError(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                } else {
                    var oError = responseObject.error;
                    if ((typeof (oError) != "undefined") && (oError != null)) {
                        addError(oError.message);
                    } else {
                        var oTypes = responseObject.types;
                        if ((typeof (oTypes) == "undefined") || (oTypes == null)) {
                            addError(oThis.i18n["catalog.gxe.dialog.invalidResponse"]);
                        } else if (oTypes.length == 0) {
                            var elNone = document.createElement("span");
                            elNone.appendChild(document.createTextNode(this.i18n["catalog.gxe.dialog.noDefinedTypes"]));
                            elWorking.appendChild(elNone);
                        } else {
                            addTypes(oTypes);
                        }
                    }

load: dojo.hitch(this, function (responseObject, ioArgs) {
                if ((typeof (responseObject) == "undefined") || (responseObject == null)) {
                    handleError(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                } else {
                    var oError = responseObject.error;
                    if ((typeof (oError) != "undefined") && (oError != null)) {
                        handleError(oError.message);
                    } else {
                        //handleError(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                        //return;
                        var cfgDefinition = responseObject.cfgDefinition;
                        var sResponseXml = responseObject.xml;
                        if ((typeof (cfgDefinition) == "undefined") || (cfgDefinition == null)) {
                            handleError(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                        } else if ((typeof (sResponseXml) == "undefined") || (sResponseXml == null)) {
                            handleError(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                        } else {
                            var dom = this._makeXmlDom(sResponseXml);
                            this._prepForEditorLoad();
                            gxe.cfg.initialize(cfgDefinition);
                            var elHtmlParent = dojo.byId("gxeDocument");
                            elHtmlParent.style.display = "none";
                            this.gxeContext.buildUI(cfgDefinition, elHtmlParent, dom);
                            elHtmlParent.style.display = "block";
                            this._onEditorLoaded();
                            oWorking.hide();
                        }
                    }
                }
            })
        });

load: dojo.hitch(this, function (responseObject, ioArgs) {
                if ((typeof (responseObject) == "undefined") || (responseObject == null)) {
                    addError(this.i18n["catalog.gxe.dialog.invalidResponse"]);
                } else {
                    var oError = responseObject.error;
                    if ((typeof (oError) != "undefined") && (oError != null)) {
                        addError(oError.message);
                    } else {
                        var oTypes = responseObject.types;
                        if ((typeof (oTypes) == "undefined") || (oTypes == null)) {
                            addError(oThis.i18n["catalog.gxe.dialog.invalidResponse"]);
                        } else if (oTypes.length == 0) {
                            var elNone = document.createElement("span");
                            elNone.appendChild(document.createTextNode(this.i18n["catalog.gxe.dialog.noDefinedTypes"]));
                            elWorking.appendChild(elNone);
                        } else {
                            addTypes(oTypes);
                        }
                    }
                }
                oDialog.show();
            })
        });

handleError: function(oWorking,sMsg) {
    if ((typeof(sMsg) == "undefined") || (sMsg == null)) {
      sMsg = this.i18n["catalog.gxe.dialog.invalidResponse"];
    }
    if ((typeof(oWorking) != "undefined") && (oWorking != null)) {
      oWorking.hide();
    }
    alert(sMsg);
  },