diff --git a/js/js.libraries/src/core/json.kt b/js/js.libraries/src/core/json.kt
index df624aad0be..335a1eb9068 100644
--- a/js/js.libraries/src/core/json.kt
+++ b/js/js.libraries/src/core/json.kt
@@ -9,10 +9,10 @@ class Json() {
 }
 
 library("jsonSet")
-fun Json.set(paramName : String, value : Any?) : Unit {}
+fun Json.set(paramName : String, value : Any?) : Unit = js.noImpl
 
 library("jsonGet")
-fun Json.get(paramName : String) : Any? = null
+fun Json.get(paramName : String) : Any? = js.noImpl
 
 library("jsonFromTuples")
-fun json(vararg pairs : Tuple2<String, Any?>) = Json()
+fun json(vararg pairs : Tuple2<String, Any?>) : Json = js.noImpl
\ No newline at end of file
diff --git a/js/js.libraries/src/jquery/ui.kt b/js/js.libraries/src/jquery/ui.kt
index ffccbe1f983..90a9eee8f9e 100644
--- a/js/js.libraries/src/jquery/ui.kt
+++ b/js/js.libraries/src/jquery/ui.kt
@@ -11,6 +11,12 @@ fun JQuery.buttonset()  : JQuery = js.noImpl;
 native
 fun JQuery.dialog() : JQuery = js.noImpl;
 native
+fun JQuery.dialog(params : Json) : JQuery = js.noImpl
+native
+fun JQuery.dialog(mode : String, param : String) : Any? = js.noImpl
+native
+fun JQuery.dialog(mode : String, param : String, value : Any?) : JQuery = js.noImpl
+native
 fun JQuery.button() : JQuery = js.noImpl;
 native
 fun JQuery.accordion() : JQuery = js.noImpl
diff --git a/js/js.translator/testFiles/kotlin_lib.js b/js/js.translator/testFiles/kotlin_lib.js
index 68834e5bf3b..66d36df1ee1 100644
--- a/js/js.translator/testFiles/kotlin_lib.js
+++ b/js/js.translator/testFiles/kotlin_lib.js
@@ -594,6 +594,7 @@ var Kotlin;
         return res;
     };
 
+    //TODO: use intrinsic
     Kotlin.jsonSet = function (obj, attrName, value) {
         obj[attrName] = value;
     };
@@ -603,6 +604,16 @@ var Kotlin;
     };
 
 
+    Kotlin.jsonAddProperties = function (obj1, obj2) {
+        for (var p in obj2) {
+            if (obj2.hasOwnProperty(p)) {
+                obj1[p] = obj2[p];
+            }
+        }
+        return obj1;
+    };
+
+    //TODO: use intrinsic
     Kotlin.sure = function (obj) {
         return obj;
     };