Index: src/Common/SharpMap/Web/Cache.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/Common/SharpMap/Web/Cache.cs	(.../Cache.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/Common/SharpMap/Web/Cache.cs	(.../Cache.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -16,45 +16,50 @@
 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 
 using System;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Web;
+using System.Web.Caching;
 
 namespace SharpMap.Web
 {
-	/// <summary>
-	/// Class for storing rendered images in the httpcache
-	/// </summary>
-	public class Caching
-	{
-		/// <summary>
-		/// Inserts an image into the HttpCache and returns the cache identifier.
-		/// </summary>
-		/// <remarks>
-		/// Image can after insertion into the cache be requested by calling getmap.aspx?ID=[identifier]<br/>
-		/// This requires you to add the following to web.config:
-		/// <code escaped="true">
-		/// <httpHandlers>
-		///	   <add verb="*" path="GetMap.aspx" type="SharpMap.Web.HttpHandler,SharpMap"/>
-		/// </httpHandlers>
-		/// </code>
-		/// <example>
-		/// Inserting the map into the cache and setting the ImageUrl:
-		/// <code>
-		/// string imgID = SharpMap.Web.Caching.CacheMap(5, myMap.GetMap(), Session.SessionID, Context);
-		/// imgMap.ImageUrl = "getmap.aspx?ID=" + HttpUtility.UrlEncode(imgID);
-		/// </code>
-		/// </example>
-		/// </remarks>
-		/// <param name="minutes">Number of minutes to cache the map</param>
-		/// <param name="map">Map reference</param>
-		/// <returns>Image identifier</returns>
-		public static string InsertIntoCache(int minutes, System.Drawing.Image map)
-		{
-			string guid = System.Guid.NewGuid().ToString().Replace("-","");
-			System.IO.MemoryStream MS = new System.IO.MemoryStream();
-			map.Save(MS, System.Drawing.Imaging.ImageFormat.Png);
-			byte[] buffer = MS.ToArray();
-			System.Web.HttpContext.Current.Cache.Insert(guid, buffer, null, System.Web.Caching.Cache.NoAbsoluteExpiration, TimeSpan.FromMinutes(minutes));
-			map.Dispose();
-			return guid;
-		}
-	}
-}
+    /// <summary>
+    /// Class for storing rendered images in the httpcache
+    /// </summary>
+    public class Caching
+    {
+        /// <summary>
+        /// Inserts an image into the HttpCache and returns the cache identifier.
+        /// </summary>
+        /// <remarks>
+        /// Image can after insertion into the cache be requested by calling getmap.aspx?ID=[identifier]<br/>
+        /// This requires you to add the following to web.config:
+        /// <code escaped="true">
+        /// <httpHandlers>
+        ///	   <add verb="*" path="GetMap.aspx" type="SharpMap.Web.HttpHandler,SharpMap"/>
+        /// </httpHandlers>
+        /// </code>
+        /// <example>
+        /// Inserting the map into the cache and setting the ImageUrl:
+        /// <code>
+        /// string imgID = SharpMap.Web.Caching.CacheMap(5, myMap.GetMap(), Session.SessionID, Context);
+        /// imgMap.ImageUrl = "getmap.aspx?ID=" + HttpUtility.UrlEncode(imgID);
+        /// </code>
+        /// </example>
+        /// </remarks>
+        /// <param name="minutes">Number of minutes to cache the map</param>
+        /// <param name="map">Map reference</param>
+        /// <returns>Image identifier</returns>
+        public static string InsertIntoCache(int minutes, Image map)
+        {
+            string guid = Guid.NewGuid().ToString().Replace("-", "");
+            MemoryStream MS = new MemoryStream();
+            map.Save(MS, ImageFormat.Png);
+            byte[] buffer = MS.ToArray();
+            HttpContext.Current.Cache.Insert(guid, buffer, null, Cache.NoAbsoluteExpiration, TimeSpan.FromMinutes(minutes));
+            map.Dispose();
+            return guid;
+        }
+    }
+}
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