diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/ForeachTest.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/ForeachTest.java
index 9c59d9c417c..0d8fe7247ff 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/ForeachTest.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/ForeachTest.java
@@ -25,10 +25,6 @@ public final class ForeachTest extends AbstractExpressionTest {
         super("for/");
     }
 
-    public void TODO_testForUpTo() throws Exception {
-        fooBoxIsValue(10);
-    }
-
     public void testForIteratesOverArray() throws Exception {
         fooBoxTest();
     }
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/RangeTest.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/RangeTest.java
index 10a497e40a9..618ca4dd5a5 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/RangeTest.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/RangeTest.java
@@ -44,4 +44,8 @@ public final class RangeTest extends SingleFileTranslationTest {
     public void testIteratingOverRanges() throws Exception {
         fooBoxTest();
     }
+
+    public void testIntUpTo() throws Exception {
+        fooBoxTest();
+    }
 }
diff --git a/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/FunctionIntrinsics.java b/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/FunctionIntrinsics.java
index afa4de9275f..19cceea3a37 100644
--- a/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/FunctionIntrinsics.java
+++ b/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/FunctionIntrinsics.java
@@ -50,6 +50,7 @@ public final class FunctionIntrinsics {
         register(ArrayFIF.INSTANCE);
         register(TopLevelFIF.INSTANCE);
         register(NumberConversionFIF.INSTANCE);
+        register(RangesFIF.INSTANCE);
     }
 
     private boolean register(@NotNull FunctionIntrinsicFactory instance) {
diff --git a/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/factories/RangesFIF.java b/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/factories/RangesFIF.java
new file mode 100644
index 00000000000..ef436de6393
--- /dev/null
+++ b/js/js.translator/src/org/jetbrains/k2js/translate/intrinsic/functions/factories/RangesFIF.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.k2js.translate.intrinsic.functions.factories;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.k2js.translate.intrinsic.functions.basic.CallStandardMethodIntrinsic;
+
+import static org.jetbrains.k2js.translate.intrinsic.functions.patterns.PatternBuilder.pattern;
+
+/**
+ * @author Pavel Talanov
+ */
+public final class RangesFIF extends CompositeFIF {
+
+    @NotNull
+    public static final FunctionIntrinsicFactory INSTANCE = new RangesFIF();
+
+    private RangesFIF() {
+        add(pattern("Int.upto"), new CallStandardMethodIntrinsic("Kotlin.intUpto", true, 1));
+    }
+}
diff --git a/js/js.translator/testFiles/expression/for/cases/forUpTo.kt b/js/js.translator/testFiles/expression/for/cases/forUpTo.kt
deleted file mode 100644
index ed3692a21a1..00000000000
--- a/js/js.translator/testFiles/expression/for/cases/forUpTo.kt
+++ /dev/null
@@ -1,9 +0,0 @@
-package foo
-
-fun box() : Int {
-    var sum = 0
-    for (i in 0.upto(5)) {
-      sum += i
-    }
-    return sum
-}
\ No newline at end of file
diff --git a/js/js.translator/testFiles/kotlin_lib.js b/js/js.translator/testFiles/kotlin_lib.js
index 32ef95b8964..06fa523c236 100644
--- a/js/js.translator/testFiles/kotlin_lib.js
+++ b/js/js.translator/testFiles/kotlin_lib.js
@@ -42,8 +42,8 @@ var kotlin = {set:function (receiver, key, value) {
         return answer;
     };
 
-    Kotlin.upto = function (from, limit, reversed) {
-        return Kotlin.$new(Kotlin.NumberRange)(from, limit - from, reversed).iterator();
+    Kotlin.intUpto = function (from, limit) {
+        return Kotlin.$new(Kotlin.NumberRange)(from, limit - from + 1);
     };
 
     Kotlin.modules = {};
diff --git a/js/js.translator/testFiles/range/cases/intUpTo.kt b/js/js.translator/testFiles/range/cases/intUpTo.kt
new file mode 100644
index 00000000000..ccab799f1f7
--- /dev/null
+++ b/js/js.translator/testFiles/range/cases/intUpTo.kt
@@ -0,0 +1,11 @@
+package foo
+
+import java.util.ArrayList
+
+fun box() : Boolean {
+    var elems = ArrayList<Int>()
+    for (i in 0 upto 5) {
+      elems.add(i)
+    }
+    return elems[0] == 0 && elems[1] == 1 && elems[2] == 2 && elems[3] == 3 &&  elems[4] == 4 && elems[5] == 5
+}
\ No newline at end of file