diff --git a/js/js.translator/src/org/jetbrains/k2js/config/IDEAConfig.java b/idea/src/org/jetbrains/jet/plugin/project/IDEAConfig.java
similarity index 55%
rename from js/js.translator/src/org/jetbrains/k2js/config/IDEAConfig.java
rename to idea/src/org/jetbrains/jet/plugin/project/IDEAConfig.java
index 6518839da61..16f4caee2cc 100644
--- a/js/js.translator/src/org/jetbrains/k2js/config/IDEAConfig.java
+++ b/idea/src/org/jetbrains/jet/plugin/project/IDEAConfig.java
@@ -14,18 +14,21 @@
  * limitations under the License.
  */
 
-package org.jetbrains.k2js.config;
+package org.jetbrains.jet.plugin.project;
 
 import com.google.common.collect.Lists;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.io.FileUtil;
+import com.intellij.openapi.vfs.VirtualFile;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.psi.JetFile;
+import org.jetbrains.k2js.config.Config;
 import org.jetbrains.k2js.utils.JetFileUtils;
 
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
+import java.io.*;
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.Collections;
 import java.util.Enumeration;
 import java.util.List;
@@ -37,22 +40,62 @@ import java.util.zip.ZipFile;
  */
 public final class IDEAConfig extends Config {
 
-    @NotNull
+    @Nullable
     private final String pathToLibZip;
 
-    public IDEAConfig(@NotNull Project project, @NotNull String pathToLibZip) {
+    public IDEAConfig(@NotNull Project project) {
         super(project);
-        this.pathToLibZip = pathToLibZip;
+        this.pathToLibZip = getLibLocationForProject(project);
     }
 
-    public IDEAConfig(@NotNull Project project) {
-        //TODO: testing purposes. Should not get anywhere near production
-        this(project, "C:\\Dev\\Projects\\Kotlin\\clean_jet\\js\\js.libraries\\src\\k2jslib.zip");
+    //TODO: refactor
+    @Nullable
+    private static String getLibLocationForProject(@NotNull Project project) {
+        VirtualFile indicationFile = JsModuleDetector.findIndicationFileInContextRoots(project);
+        if (indicationFile == null) {
+            return null;
+        }
+        try {
+            InputStream stream = indicationFile.getInputStream();
+            String path = FileUtil.loadTextAndClose(stream);
+            String pathToLibFile = getFirstLine(path);
+            if (pathToLibFile == null) {
+                return null;
+            }
+            try {
+                URI pathToLibFileUri = new URI(pathToLibFile);
+                URI pathToIndicationFileUri = new URI(indicationFile.getPath());
+                return pathToIndicationFileUri.resolve(pathToLibFileUri).toString();
+            }
+            catch (URISyntaxException e) {
+                e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
+                return null;
+            }
+        }
+        catch (IOException e) {
+            return null;
+        }
+    }
+
+    //TODO: util
+    @Nullable
+    private static String getFirstLine(@NotNull String path) throws IOException {
+        BufferedReader reader = new BufferedReader(new StringReader(path));
+        try {
+            return reader.readLine();
+        }
+
+        finally {
+            reader.close();
+        }
     }
 
     @NotNull
     @Override
-    public List<JetFile> getLibFiles() {
+    public List<JetFile> generateLibFiles() {
+        if (pathToLibZip == null) {
+            return Collections.emptyList();
+        }
         try {
             File file = new File(pathToLibZip);
             ZipFile zipFile = new ZipFile(file);
diff --git a/js/js.tests/test/org/jetbrains/k2js/test/config/TestConfig.java b/js/js.tests/test/org/jetbrains/k2js/test/config/TestConfig.java
index 144fa6f49f5..cb830ee2d56 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/config/TestConfig.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/config/TestConfig.java
@@ -71,7 +71,7 @@ public final class TestConfig extends Config {
     }
 
     @NotNull
-    public List<JetFile> getLibFiles() {
+    public List<JetFile> generateLibFiles() {
         if (jsLibFiles == null) {
             jsLibFiles = initLibFiles(getProject());
         }
diff --git a/js/js.translator/js.translator.iml b/js/js.translator/js.translator.iml
index a827f7758ae..f877327f1c0 100644
--- a/js/js.translator/js.translator.iml
+++ b/js/js.translator/js.translator.iml
@@ -10,6 +10,7 @@
     <orderEntry type="module" module-name="frontend" />
     <orderEntry type="library" name="js-libs" level="project" />
     <orderEntry type="library" scope="PROVIDED" name="intellij-core" level="project" />
+    <orderEntry type="module" module-name="idea" />
   </component>
 </module>
 
diff --git a/js/js.translator/src/org/jetbrains/k2js/analyze/AnalyzerFacadeForJS.java b/js/js.translator/src/org/jetbrains/k2js/analyze/AnalyzerFacadeForJS.java
index 525919411e7..354ead5cd2f 100644
--- a/js/js.translator/src/org/jetbrains/k2js/analyze/AnalyzerFacadeForJS.java
+++ b/js/js.translator/src/org/jetbrains/k2js/analyze/AnalyzerFacadeForJS.java
@@ -18,6 +18,8 @@ package org.jetbrains.k2js.analyze;
 
 import com.google.common.base.Predicate;
 import com.google.common.base.Predicates;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.PsiFile;
 import org.jetbrains.annotations.NotNull;
@@ -37,13 +39,10 @@ import org.jetbrains.jet.lang.resolve.*;
 import org.jetbrains.jet.lang.resolve.scopes.WritableScope;
 import org.jetbrains.jet.lang.types.lang.JetStandardClasses;
 import org.jetbrains.jet.lang.types.lang.JetStandardLibrary;
+import org.jetbrains.jet.plugin.project.IDEAConfig;
 import org.jetbrains.k2js.config.Config;
-import org.jetbrains.k2js.config.IDEAConfig;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
+import java.util.*;
 
 /**
  * @author Pavel Talanov
@@ -101,9 +100,9 @@ public enum AnalyzerFacadeForJS implements AnalyzerFacade {
 
     @NotNull
     public static Collection<JetFile> withJsLibAdded(@NotNull Collection<JetFile> files, @NotNull Config config) {
-        List<JetFile> allFiles = new ArrayList<JetFile>();
-        allFiles.addAll(files);
-        allFiles.addAll(config.getLibFiles());
+        Set<JetFile> allFiles = Sets.newHashSet();
+        allFiles.addAll(toOriginal(files));
+        allFiles.addAll(toOriginal(config.getLibFiles()));
         return allFiles;
     }
 
@@ -113,12 +112,21 @@ public enum AnalyzerFacadeForJS implements AnalyzerFacade {
             @Override
             public boolean apply(@Nullable PsiFile file) {
                 assert file instanceof JetFile;
-                @SuppressWarnings("UnnecessaryLocalVariable") boolean notLibFile = !jsLibFiles.contains(file);
+                @SuppressWarnings("UnnecessaryLocalVariable") boolean notLibFile = !jsLibFiles.contains(file.getOriginalFile());
                 return notLibFile;
             }
         };
     }
 
+    @NotNull
+    private static Collection<JetFile> toOriginal(@NotNull Collection<JetFile> files) {
+        Collection<JetFile> result = Lists.newArrayList();
+        for (JetFile file : files) {
+            result.add(file);
+        }
+        return result;
+    }
+
     //TODO: exclude?
     @NotNull
     public static BindingContext analyzeNamespace(@NotNull JetFile file) {
diff --git a/js/js.translator/src/org/jetbrains/k2js/config/Config.java b/js/js.translator/src/org/jetbrains/k2js/config/Config.java
index af75c6d253e..0be12f4fef0 100644
--- a/js/js.translator/src/org/jetbrains/k2js/config/Config.java
+++ b/js/js.translator/src/org/jetbrains/k2js/config/Config.java
@@ -18,6 +18,7 @@ package org.jetbrains.k2js.config;
 
 import com.intellij.openapi.project.Project;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.psi.JetFile;
 
 import java.util.Arrays;
@@ -52,6 +53,8 @@ public abstract class Config {
 
     @NotNull
     private final Project project;
+    @Nullable
+    private List<JetFile> libFiles = null;
 
     public Config(@NotNull Project project) {
         this.project = project;
@@ -63,5 +66,13 @@ public abstract class Config {
     }
 
     @NotNull
-    public abstract List<JetFile> getLibFiles();
+    protected abstract List<JetFile> generateLibFiles();
+
+    @NotNull
+    public final List<JetFile> getLibFiles() {
+        if (libFiles == null) {
+            libFiles = generateLibFiles();
+        }
+        return libFiles;
+    }
 }
diff --git a/js/js.translator/src/org/jetbrains/k2js/facade/K2JSTranslator.java b/js/js.translator/src/org/jetbrains/k2js/facade/K2JSTranslator.java
index abd649410bb..d0cd2b05334 100644
--- a/js/js.translator/src/org/jetbrains/k2js/facade/K2JSTranslator.java
+++ b/js/js.translator/src/org/jetbrains/k2js/facade/K2JSTranslator.java
@@ -24,9 +24,9 @@ import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.resolve.BindingContext;
 import org.jetbrains.jet.lang.types.lang.JetStandardLibrary;
 import org.jetbrains.jet.plugin.JetMainDetector;
+import org.jetbrains.jet.plugin.project.IDEAConfig;
 import org.jetbrains.k2js.analyze.AnalyzerFacadeForJS;
 import org.jetbrains.k2js.config.Config;
-import org.jetbrains.k2js.config.IDEAConfig;
 import org.jetbrains.k2js.generate.CodeGenerator;
 import org.jetbrains.k2js.translate.general.Translation;
 import org.jetbrains.k2js.utils.GenerationUtils;
@@ -50,8 +50,7 @@ public final class K2JSTranslator {
     public static void translateWithCallToMainAndSaveToFile(@NotNull List<JetFile> files,
                                                             @NotNull String outputPath,
                                                             @NotNull Project project) throws Exception {
-        K2JSTranslator translator = new K2JSTranslator(new IDEAConfig(project,
-                                                                      "C:\\Dev\\Projects\\Kotlin\\clean_jet\\js\\js.libraries\\src\\k2jslib.zip"));
+        K2JSTranslator translator = new K2JSTranslator(new IDEAConfig(project));
         String programCode = translator.generateProgramCode(files) + "\n";
         JetFile fileWithMain = JetMainDetector.getFileWithMain(files);
         if (fileWithMain == null) {