diff --git a/Android-PullToRefresh/.settings/org.eclipse.jdt.core.prefs b/Android-PullToRefresh/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 00000000..b080d2dd
--- /dev/null
+++ b/Android-PullToRefresh/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,4 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.source=1.6
diff --git a/Android-PullToRefresh/bin/AndroidManifest.xml b/Android-PullToRefresh/bin/AndroidManifest.xml
new file mode 100644
index 00000000..c3db5673
--- /dev/null
+++ b/Android-PullToRefresh/bin/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.handmark.pulltorefresh.library"
+    android:versionCode="2110"
+    android:versionName="2.1.1" >
+
+    <uses-sdk android:minSdkVersion="4" />
+
+    <application />
+
+</manifest>
\ No newline at end of file
diff --git a/Android-PullToRefresh/bin/R.txt b/Android-PullToRefresh/bin/R.txt
new file mode 100644
index 00000000..8ed14772
--- /dev/null
+++ b/Android-PullToRefresh/bin/R.txt
@@ -0,0 +1,78 @@
+int anim slide_in_from_bottom 0x7f040000
+int anim slide_in_from_top 0x7f040001
+int anim slide_out_to_bottom 0x7f040002
+int anim slide_out_to_top 0x7f040003
+int attr ptrAdapterViewBackground 0x7f010010
+int attr ptrAnimationStyle 0x7f01000c
+int attr ptrDrawable 0x7f010006
+int attr ptrDrawableBottom 0x7f010012
+int attr ptrDrawableEnd 0x7f010008
+int attr ptrDrawableStart 0x7f010007
+int attr ptrDrawableTop 0x7f010011
+int attr ptrHeaderBackground 0x7f010001
+int attr ptrHeaderSubTextColor 0x7f010003
+int attr ptrHeaderTextAppearance 0x7f01000a
+int attr ptrHeaderTextColor 0x7f010002
+int attr ptrListViewExtrasEnabled 0x7f01000e
+int attr ptrMode 0x7f010004
+int attr ptrOverScroll 0x7f010009
+int attr ptrRefreshableViewBackground 0x7f010000
+int attr ptrRotateDrawableWhilePulling 0x7f01000f
+int attr ptrScrollingWhileRefreshingEnabled 0x7f01000d
+int attr ptrShowIndicator 0x7f010005
+int attr ptrSubHeaderTextAppearance 0x7f01000b
+int dimen header_footer_left_right_padding 0x7f060003
+int dimen header_footer_top_bottom_padding 0x7f060004
+int dimen indicator_corner_radius 0x7f060001
+int dimen indicator_internal_padding 0x7f060002
+int dimen indicator_right_padding 0x7f060000
+int drawable default_ptr_flip 0x7f020000
+int drawable default_ptr_rotate 0x7f020001
+int drawable indicator_arrow 0x7f020002
+int drawable indicator_bg_bottom 0x7f020003
+int drawable indicator_bg_top 0x7f020004
+int id both 0x7f050003
+int id disabled 0x7f050000
+int id fl_inner 0x7f05000c
+int id flip 0x7f050008
+int id gridview 0x7f050009
+int id manualOnly 0x7f050004
+int id pullDownFromTop 0x7f050005
+int id pullFromEnd 0x7f050002
+int id pullFromStart 0x7f050001
+int id pullUpFromBottom 0x7f050006
+int id pull_to_refresh_image 0x7f05000d
+int id pull_to_refresh_progress 0x7f05000e
+int id pull_to_refresh_sub_text 0x7f050010
+int id pull_to_refresh_text 0x7f05000f
+int id rotate 0x7f050007
+int id scrollview 0x7f05000b
+int id webview 0x7f05000a
+int layout pull_to_refresh_header_horizontal 0x7f030000
+int layout pull_to_refresh_header_vertical 0x7f030001
+int string pull_to_refresh_from_bottom_pull_label 0x7f070003
+int string pull_to_refresh_from_bottom_refreshing_label 0x7f070005
+int string pull_to_refresh_from_bottom_release_label 0x7f070004
+int string pull_to_refresh_pull_label 0x7f070000
+int string pull_to_refresh_refreshing_label 0x7f070002
+int string pull_to_refresh_release_label 0x7f070001
+int[] styleable PullToRefresh { 0x7f010000, 0x7f010001, 0x7f010002, 0x7f010003, 0x7f010004, 0x7f010005, 0x7f010006, 0x7f010007, 0x7f010008, 0x7f010009, 0x7f01000a, 0x7f01000b, 0x7f01000c, 0x7f01000d, 0x7f01000e, 0x7f01000f, 0x7f010010, 0x7f010011, 0x7f010012 }
+int styleable PullToRefresh_ptrAdapterViewBackground 16
+int styleable PullToRefresh_ptrAnimationStyle 12
+int styleable PullToRefresh_ptrDrawable 6
+int styleable PullToRefresh_ptrDrawableBottom 18
+int styleable PullToRefresh_ptrDrawableEnd 8
+int styleable PullToRefresh_ptrDrawableStart 7
+int styleable PullToRefresh_ptrDrawableTop 17
+int styleable PullToRefresh_ptrHeaderBackground 1
+int styleable PullToRefresh_ptrHeaderSubTextColor 3
+int styleable PullToRefresh_ptrHeaderTextAppearance 10
+int styleable PullToRefresh_ptrHeaderTextColor 2
+int styleable PullToRefresh_ptrListViewExtrasEnabled 14
+int styleable PullToRefresh_ptrMode 4
+int styleable PullToRefresh_ptrOverScroll 9
+int styleable PullToRefresh_ptrRefreshableViewBackground 0
+int styleable PullToRefresh_ptrRotateDrawableWhilePulling 15
+int styleable PullToRefresh_ptrScrollingWhileRefreshingEnabled 13
+int styleable PullToRefresh_ptrShowIndicator 5
+int styleable PullToRefresh_ptrSubHeaderTextAppearance 11
diff --git a/Android-PullToRefresh/bin/android-pulltorefresh.jar b/Android-PullToRefresh/bin/android-pulltorefresh.jar
new file mode 100644
index 00000000..6ab09357
Binary files /dev/null and b/Android-PullToRefresh/bin/android-pulltorefresh.jar differ
diff --git a/Android-PullToRefresh/lint.xml b/Android-PullToRefresh/lint.xml
new file mode 100644
index 00000000..ee0eead5
--- /dev/null
+++ b/Android-PullToRefresh/lint.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+</lint>
\ No newline at end of file
diff --git a/Android-PullToRefresh/project.properties b/Android-PullToRefresh/project.properties
index acfc74eb..8e4bc5fd 100644
--- a/Android-PullToRefresh/project.properties
+++ b/Android-PullToRefresh/project.properties
@@ -8,5 +8,5 @@
 # project structure.
 
 # Project target.
-target=android-16
+target=android-19
 android.library=true
diff --git a/SWADroid/lint.xml b/SWADroid/lint.xml
new file mode 100644
index 00000000..ee0eead5
--- /dev/null
+++ b/SWADroid/lint.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+</lint>
\ No newline at end of file
diff --git a/SWADroid/res/layout/webview_information_screen_layout.xml b/SWADroid/res/layout/webview_information_screen_layout.xml
new file mode 100644
index 00000000..ca4edded
--- /dev/null
+++ b/SWADroid/res/layout/webview_information_screen_layout.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+
+
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+
+
+              android:background="@color/background"
+              android:orientation="vertical">
+
+
+
+    <include layout="@layout/action_bar"/>
+
+
+
+    <WebView 
+		android:id="@+id/webview_dialog"
+		android:layout_width="match_parent"
+		android:layout_height="match_parent" >
+	</WebView>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/SWADroid/src/es/ugr/swad/swadroid/modules/information/Introduction.java b/SWADroid/src/es/ugr/swad/swadroid/modules/information/Introduction.java
index c3d693bf..5034a3c8 100644
--- a/SWADroid/src/es/ugr/swad/swadroid/modules/information/Introduction.java
+++ b/SWADroid/src/es/ugr/swad/swadroid/modules/information/Introduction.java
@@ -9,11 +9,26 @@ package es.ugr.swad.swadroid.modules.information;
 import java.io.IOException;
 import java.security.NoSuchAlgorithmException;
 import org.xmlpull.v1.XmlPullParserException;
+
+import android.os.Bundle;
+import android.webkit.WebView;
+import es.ugr.swad.swadroid.R;
 import es.ugr.swad.swadroid.modules.Module;
 
 
 public class Introduction extends Module {
 
+	@Override
+    protected void onCreate(Bundle savedInstanceState) {
+		
+		WebView webview;
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.webview_information_screen_layout);
+        webview = (WebView) this.findViewById(R.id.contentWebView);
+       
+    }
+    
+    
 	@Override
 	protected void requestService() throws NoSuchAlgorithmException,
 			IOException, XmlPullParserException {