diff --git a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
index 14c3174d..2535a30b 100644
--- a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
+++ b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
@@ -172,6 +172,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Constants.resx</DependentUpon>
     </Compile>
+    <Compile Include="Utility\Api.cs" />
     <Compile Include="Utility\ApiEventHandler.cs" />
     <Compile Include="Utility\Feed.cs" />
     <Compile Include="Utility\FeedEventHandler.cs" />
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs
index 95c960be..48b5398d 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs
@@ -167,7 +167,7 @@ namespace CampusAppWP8.Pages.Lecture
             this.api.EventHandler.ApiIsReadyEvent += new ApiEventHandler.ApiReadyHandler(this.ApiIsReady);
             this.ProgressBar.Visibility = System.Windows.Visibility.Visible;
             List<UrlParamModel> parameterList = this.CreateUrlParameter();
-            this.api.XMLHttpGet(parameterList);
+            this.api.ApiGet(parameterList);
         }
 
         /// <summary>
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Lecture/ResultPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Lecture/ResultPage.xaml.cs
index fbb9157a..a9f96ba4 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Lecture/ResultPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Lecture/ResultPage.xaml.cs
@@ -133,6 +133,7 @@ namespace CampusAppWP8.Pages.Lecture
         private void ShowModulWebPage(object sender, RoutedEventArgs e)
         {
             Button btn = (Button)sender;
+            HideOptions((StackPanel)btn.Parent);
             Uri url = new Uri(Constants.PathLecture_ModulWebPage + "?" + Constants.ParamModelLecture_ModulNumber + "=" + btn.Tag, UriKind.Relative);
             NavigationService.Navigate(url);
         }
@@ -145,6 +146,7 @@ namespace CampusAppWP8.Pages.Lecture
         private void ShowDetailPage(object sender, RoutedEventArgs e)
         {
             Button btn = (Button)sender;
+            HideOptions((StackPanel)btn.Parent);
             Uri url = new Uri(Constants.PathLecture_ResultDetailPage + "?" + Constants.ParamModelLecture_ActivityId + "=" + btn.Tag, UriKind.Relative);
             NavigationService.Navigate(url);
         }
diff --git a/CampusAppWP8/CampusAppWP8/Utility/Api.cs b/CampusAppWP8/CampusAppWP8/Utility/Api.cs
new file mode 100644
index 00000000..a7ef98e5
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Utility/Api.cs
@@ -0,0 +1,144 @@
+//-----------------------------------------------------------------------
+// <copyright file="Api.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>19.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Utility
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Net;
+    using CampusAppWP8.Model.Utility;
+
+    /// <summary>
+    /// This abstract Class is for API
+    /// </summary>
+    /// <typeparam name="T">Type for model of the API</typeparam>
+    public abstract class Api<T> : HttpRequest
+    {
+        #region Members
+
+        /// <summary>
+        /// EventHandler of the API
+        /// </summary>
+        private readonly ApiEventHandler eventHandler;
+
+        /// <summary>
+        /// The model of the API
+        /// </summary>
+        private T model;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Api{T}" /> class.
+        /// </summary>
+        /// <param name="apiBaseAddress">BaseUrl of the API</param>
+        public Api(Uri apiBaseAddress)
+            : base(apiBaseAddress)
+        {
+            this.eventHandler = new ApiEventHandler();
+        }
+
+        #endregion
+
+        #region Proberty
+
+        /// <summary>
+        /// Gets or sets for the model of the API
+        /// </summary>
+        public T Model
+        {
+            get
+            {
+                return this.model;
+            }
+
+            set
+            {
+                if ((value == null && this.model != null) || !value.Equals(this.model))
+                {
+                    this.model = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets for the event-handler of the API
+        /// </summary>
+        public ApiEventHandler EventHandler
+        {
+            get { return this.eventHandler; }
+        }
+        #endregion
+
+        #region Methods
+
+        #region public
+
+        /// <summary>
+        /// Method send an HTTP-Get for an API
+        /// </summary>
+        /// <param name="parameters">list of GetParameter</param>
+        public void ApiGet(List<UrlParamModel> parameters)
+        {
+            Uri getUrl = this.CreateGetUrl(parameters);
+            this.HttpGet(getUrl, this.DownloadCompleted);
+        }
+        #endregion
+
+        #region protected
+
+        /// <summary>
+        /// Method implement the deserialization a Xml-API
+        /// </summary>
+        /// <param name="xmlString">content of the API</param>
+        protected abstract void Deserialization(string xmlString);
+
+        #endregion
+
+        #region private
+
+        /// <summary>
+        /// Method create the model of the API
+        /// </summary>
+        /// <param name="resultString">content of the API</param>
+        private void CreateModel(string resultString)
+        {
+            if (resultString == null || resultString == string.Empty)
+            {
+                return;
+            }
+
+            this.Deserialization(resultString);
+            this.EventHandler.FireApiReadyevent();
+        }
+
+        /// <summary>
+        /// Method will be execute if the download of the API is completed and create the model
+        /// </summary>
+        /// <param name="sender">Sender of the event</param>
+        /// <param name="e">Arguments of the event</param>
+        private void DownloadCompleted(object sender, DownloadStringCompletedEventArgs e)
+        {
+            Exception downloadError = e.Error;
+            if (downloadError != null)
+            {
+                return;
+            }
+
+            string downloadResult = e.Result;
+            if (downloadResult != null && !downloadResult.Equals(string.Empty))
+            {
+                this.CreateModel(downloadResult);
+            }
+        }
+        #endregion
+
+#endregion
+    }
+}
diff --git a/CampusAppWP8/CampusAppWP8/Utility/XmlApi.cs b/CampusAppWP8/CampusAppWP8/Utility/XmlApi.cs
index 71e48753..2f1aa0e3 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/XmlApi.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/XmlApi.cs
@@ -17,24 +17,14 @@ namespace CampusAppWP8.Utility
     /// This abstract Class is for Xml-API
     /// </summary>
     /// <typeparam name="T">Type for model of the API</typeparam>
-    public abstract class XmlApi<T> : HttpRequest
+    public abstract class XmlApi<T> : Api<T>
     {
         #region Members
-
-        /// <summary>
-        /// EventHandler of the API
-        /// </summary>
-        private readonly ApiEventHandler eventHandler;
-
-        /// <summary>
-        /// The model of the API
-        /// </summary>
-        private T model;
-
+        
         /// <summary>
         /// Variable for the name of the root-tag
         /// </summary>
-        private string validRootName = Constants.XMLRootElementName;
+        private string validRootName;
 
         #endregion
 
@@ -47,40 +37,13 @@ namespace CampusAppWP8.Utility
         public XmlApi(Uri apiBaseAddress)
             : base(apiBaseAddress)
         {
-            this.eventHandler = new ApiEventHandler();
+            this.validRootName = Constants.XMLRootElementName;
         }
 
         #endregion
 
         #region Proberty
 
-        /// <summary>
-        /// Gets or sets for the model of the API
-        /// </summary>
-        public T Model
-        {
-            get
-            {
-                return this.model;
-            }
-
-            set
-            {
-                if ((value == null && this.model != null) || !value.Equals(this.model))
-                {
-                    this.model = value;
-                }
-            }
-        }
-
-        /// <summary>
-        /// Gets for the event-handler of the API
-        /// </summary>
-        public ApiEventHandler EventHandler
-        {
-            get { return this.eventHandler; }
-        }
-
         /// <summary>
         /// Gets or sets the ValidRootName of the API
         /// </summary>
@@ -103,68 +66,19 @@ namespace CampusAppWP8.Utility
         #endregion
 
         #region Methods
-        #region public
-
-        /// <summary>
-        /// Method send an HTTP-Get for an Xml-API
-        /// </summary>
-        /// <param name="parameters">list of GetParameter</param>
-        public void XMLHttpGet(List<UrlParamModel> parameters)
-        {
-            Uri getUrl = this.CreateGetUrl(parameters);
-            this.HttpGet(getUrl, this.DownloadCompleted);
-        }
-
-        /// <summary>
-        /// Method create the model of the API
-        /// </summary>
-        /// <param name="xmlString">content of the API</param>
-        private void CreateModel(string xmlString)
-        {
-            if (xmlString == null || xmlString == string.Empty)
-            {
-                return;
-            }
-
-            this.Deserialization(xmlString);
-            this.EventHandler.FireApiReadyevent();
-        }
-        #endregion
-
-        #region private
+        
         /// <summary>
         /// Method implement the deserialization a Xml-API
         /// </summary>
         /// <param name="xmlString">content of the API</param>
-        private void Deserialization(string xmlString)
+        protected override void Deserialization(string xmlString)
         {
-            T model = XmlManager.DeserializationToModel<T>(xmlString, ValidRootName);
+            T model = XmlManager.DeserializationToModel<T>(xmlString, this.ValidRootName);
             if (model != null)
             {
                 this.Model = model;
             }
         }
-
-        /// <summary>
-        /// Method will be execute if the download of the API is completed and create the model
-        /// </summary>
-        /// <param name="sender">Sender of the event</param>
-        /// <param name="e">Arguments of the event</param>
-        private void DownloadCompleted(object sender, DownloadStringCompletedEventArgs e)
-        {
-            Exception downloadError = e.Error;
-            if (downloadError != null)
-            {
-                return;
-            }
-
-            string downloadResult = e.Result;
-            if (downloadResult != null && !downloadResult.Equals(string.Empty))
-            {
-                this.CreateModel(downloadResult);
-            }
-        }
-        #endregion
         #endregion
     }
 }