diff --git a/NiHao/release/NiHao-0.8c.jar b/NiHao/release/NiHao-0.8c.jar
index f2e9178..35cf35b 100644
--- a/NiHao/release/NiHao-0.8c.jar
+++ b/NiHao/release/NiHao-0.8c.jar
Binary files differ
diff --git a/NiHao/src/nihao/NiHaoConf.java b/NiHao/src/nihao/NiHaoConf.java
index 2d2b0c8..8c8445d 100644
--- a/NiHao/src/nihao/NiHaoConf.java
+++ b/NiHao/src/nihao/NiHaoConf.java
@@ -1,27 +1,32 @@
-package nihao;
-
-import nihao.login.LoginConf;
-
-public class NiHaoConf {
-	private LoginConf loginConf;
-	private int worksetCacheSize = 2;
-	private String defaultGroupForUndefinedPage;
-
-	public LoginConf getLoginConf() {
-		return loginConf;
-	}
-
-	public int getWorksetCacheSize() {
-		return worksetCacheSize;
-	}
-
-	/**
-	 * Retorna el grupo por defecto de las páginas que no se definen en el
-	 * contexto, si no se define un grupo se redirige a forbidden
-	 * 
-	 * @return
-	 */
-	public String getDefaultGroupForUndefinedPage() {
-		return defaultGroupForUndefinedPage;
-	}
-}
+package nihao;
+
+import nihao.login.LoginConf;
+
+public class NiHaoConf {
+	private LoginConf loginConf;
+	private int worksetCacheSize = 2;
+	private String defaultGroupForUndefinedPage;
+	private boolean autoloadNajaxObjects=true;
+
+	public boolean isAutoloadNajaxObjects() {
+		return autoloadNajaxObjects;
+	}
+
+	public LoginConf getLoginConf() {
+		return loginConf;
+	}
+
+	public int getWorksetCacheSize() {
+		return worksetCacheSize;
+	}
+
+	/**
+	 * Retorna el grupo por defecto de las páginas que no se definen en el
+	 * contexto, si no se define un grupo se redirige a forbidden
+	 * 
+	 * @return
+	 */
+	public String getDefaultGroupForUndefinedPage() {
+		return defaultGroupForUndefinedPage;
+	}
+}
diff --git a/NiHao/src/nihao/WebCall.java b/NiHao/src/nihao/WebCall.java
index 86a1a03..991028e 100644
--- a/NiHao/src/nihao/WebCall.java
+++ b/NiHao/src/nihao/WebCall.java
@@ -121,6 +121,25 @@
 	public Object getSession(String key) {
 		return ses.getAttribute(key);
 	}
+	
+	/**
+	 * Return the session value as desired type. Null was returned if no object found, or the object type not is the desired one.
+	 * @param key String key
+	 * @param cls Class of returned type
+	 * @return Object
+	 */
+	public <T> T getSessionAs(String key,Class<T> cls){
+		return Conversor.as(getSession(key),cls);
+	}
+	
+	/**
+	 * Sets a value on the session
+	 * @param key
+	 * @param o
+	 */
+	public void setSession(String key, Object o){
+		ses.setAttribute(key, o);
+	}
 
 	/**
 	 * Obtiene un valor con el formato usado en los tags de la web, intenta
diff --git a/NiHao/src/nihao/ajax/AjaxObject.java b/NiHao/src/nihao/ajax/AjaxObject.java
index e57bc6a..6ea3c4d 100644
--- a/NiHao/src/nihao/ajax/AjaxObject.java
+++ b/NiHao/src/nihao/ajax/AjaxObject.java
@@ -1,109 +1,111 @@
-package nihao.ajax;
-
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.lang.reflect.Parameter;
-import java.util.HashMap;
-import java.util.Set;
-
-import nihao.NiHaoException;
-import nihao.util.Serializer;
-import nihao.util.reflection.Classes;
-
-public class AjaxObject {
-	private static HashMap<String, AjaxObject> objects = new HashMap<String, AjaxObject>();
-	private Class<?> c;
-	private Object o;
-	private HashMap<String, Method> methods;
-	static {
-		for (Class<?> c : Classes.getLocalClassesWithAnnotation(AjaxPublished.class))
-			Register(c);
-	}
-
-	public static void Register(Class<?> c) {
-		String name = c.getSimpleName();
-		AjaxObject obj = objects.get(name);
-		if (obj != null)
-			throw new NiHaoException("Duplicated object. " + c.getName() + " was also registered with class " + obj.c.getName());
-		objects.put(name, new AjaxObject(c));
-	}
-
-	static AjaxObject get(String name) {
-		return objects.get(name);
-	}
-
-	private AjaxObject(Class<?> c) {
-		this.c = c;
-		try {
-			o = c.newInstance();
-		} catch (InstantiationException | IllegalAccessException e) {
-			throw new NiHaoException("Can't create instance of ajax object " + getName(), e);
-		}
-		if (methods == null) {
-			methods = new HashMap<String, Method>();
-			for (Method m : c.getMethods())
-				if (m.getAnnotationsByType(AjaxPublished.class).length > 0)
-					methods.put(m.getName(), m);
-		}
-	}
-
-	public String getName() {
-		return c.getSimpleName();
-	}
-
-	/**
-	 * Return the ajax published methods
-	 * 
-	 * @return
-	 */
-	public String[] getPublicMethods() {
-		Set<String> keys = methods.keySet();
-		return keys.toArray(new String[keys.size()]);
-	}
-
-	/**
-	 * Return the parameter names of a method
-	 * 
-	 * @param key
-	 *            String method name
-	 * @return
-	 */
-	public String[] getPublicMethodParams(String key) {
-		Method m = methods.get(key);
-		if (m == null)
-			return null;
-		Parameter[] pars = m.getParameters();
-		String[] result = new String[pars.length];
-		for (int i = 0; i < pars.length; i++)
-			result[i] = pars[i].getName();
-		return result;
-	}
-
-	/**
-	 * Invokes a object method
-	 * 
-	 * @param name
-	 *            String method name
-	 * @param request
-	 *            String arguments in JSON object
-	 * @return
-	 */
-	public Object invoke(String name, String request) {
-		Method m = methods.get(name);
-		if (m == null)
-			return new NiHaoException("Ajax method not exists");
-		HashMap<String, Object> typeMap = new HashMap<String, Object>();
-		Parameter[] pars = m.getParameters();
-		for (Parameter p : pars)
-			typeMap.put(p.getName(), p.getParameterizedType());
-		HashMap<String, Object> req = Serializer.deserializeFromJSON(request, null, typeMap);
-		Object[] args = new Object[pars.length];
-		for (int i = 0; i < pars.length; i++)
-			args[i] = req.get(pars[i].getName());
-		try {
-			return m.invoke(o, args);
-		} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
-			throw new NiHaoException(e);
-		}
-	}
-}
+package nihao.ajax;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+import java.util.HashMap;
+import java.util.Set;
+
+import nihao.NiHao;
+import nihao.NiHaoException;
+import nihao.util.Serializer;
+import nihao.util.reflection.Classes;
+
+public class AjaxObject {
+	private static HashMap<String, AjaxObject> objects = new HashMap<String, AjaxObject>();
+	private Class<?> c;
+	private Object o;
+	private HashMap<String, Method> methods;
+	static {
+		if (NiHao.getConf().isAutoloadNajaxObjects())
+			for (Class<?> c : Classes.getLocalClassesWithAnnotation(AjaxPublished.class))
+				Register(c);
+	}
+
+	public static void Register(Class<?> c) {
+		String name = c.getSimpleName();
+		AjaxObject obj = objects.get(name);
+		if (obj != null)
+			throw new NiHaoException("Duplicated object. " + c.getName() + " was also registered with class " + obj.c.getName());
+		objects.put(name, new AjaxObject(c));
+	}
+
+	static AjaxObject get(String name) {
+		return objects.get(name);
+	}
+
+	private AjaxObject(Class<?> c) {
+		this.c = c;
+		try {
+			o = c.newInstance();
+		} catch (InstantiationException | IllegalAccessException e) {
+			throw new NiHaoException("Can't create instance of ajax object " + getName(), e);
+		}
+		if (methods == null) {
+			methods = new HashMap<String, Method>();
+			for (Method m : c.getMethods())
+				if (m.getAnnotationsByType(AjaxPublished.class).length > 0)
+					methods.put(m.getName(), m);
+		}
+	}
+
+	public String getName() {
+		return c.getSimpleName();
+	}
+
+	/**
+	 * Return the ajax published methods
+	 * 
+	 * @return
+	 */
+	public String[] getPublicMethods() {
+		Set<String> keys = methods.keySet();
+		return keys.toArray(new String[keys.size()]);
+	}
+
+	/**
+	 * Return the parameter names of a method
+	 * 
+	 * @param key
+	 *            String method name
+	 * @return
+	 */
+	public String[] getPublicMethodParams(String key) {
+		Method m = methods.get(key);
+		if (m == null)
+			return null;
+		Parameter[] pars = m.getParameters();
+		String[] result = new String[pars.length];
+		for (int i = 0; i < pars.length; i++)
+			result[i] = pars[i].getName();
+		return result;
+	}
+
+	/**
+	 * Invokes a object method
+	 * 
+	 * @param name
+	 *            String method name
+	 * @param request
+	 *            String arguments in JSON object
+	 * @return
+	 */
+	public Object invoke(String name, String request) {
+		Method m = methods.get(name);
+		if (m == null)
+			return new NiHaoException("Ajax method not exists");
+		HashMap<String, Object> typeMap = new HashMap<String, Object>();
+		Parameter[] pars = m.getParameters();
+		for (Parameter p : pars)
+			typeMap.put(p.getName(), p.getParameterizedType());
+		HashMap<String, Object> req = Serializer.deserializeFromJSON(request, null, typeMap);
+		Object[] args = new Object[pars.length];
+		for (int i = 0; i < pars.length; i++)
+			args[i] = req.get(pars[i].getName());
+		try {
+			return m.invoke(o, args);
+		} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+			throw new NiHaoException(e);
+		}
+	}
+}
diff --git a/NiHao/src/nihao/ajax/AjaxServlet.java b/NiHao/src/nihao/ajax/AjaxServlet.java
new file mode 100644
index 0000000..5b0df07
--- /dev/null
+++ b/NiHao/src/nihao/ajax/AjaxServlet.java
@@ -0,0 +1,106 @@
+package nihao.ajax;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import nihao.util.IoUtil;
+import nihao.util.Serializer;
+
+@WebServlet(name = "NiHaoAxaj", urlPatterns = "/ajax/*")
+public class AjaxServlet extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		processRequest(request, response);
+	}
+
+	@Override
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		processRequest(request, response);
+	}
+
+	private void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		String url = request.getPathInfo();
+		if (url.endsWith(".js")) {
+			url = url.substring(1, url.length() - 3);
+			AjaxObject o = AjaxObject.get(url);
+			PrintWriter out = response.getWriter();
+			if (o != null)
+				pushObjectJS(out, o, request.getContextPath() + request.getServletPath());
+			else
+				out.print("Error");
+		} else if (url.contains(".")) {
+			int point = url.indexOf('.');
+			String method = url.substring(point + 1);
+			url = url.substring(1, point);
+			AjaxObject o = AjaxObject.get(url);
+			if (o == null)
+				response.getWriter().print("Call Error");
+			else
+				try {
+					Object result = o.invoke(method, IoUtil.readStringToEnd(request.getReader()));
+					response.getWriter().write(Serializer.serializeToJSON(result));
+				} catch (Throwable t) {
+					response.getWriter().print("Error " + t.getClass().getName() + ": " + t.getMessage());
+				}
+		} else
+			response.getWriter().print("Error");
+	}
+
+	private void pushObjectJS(PrintWriter out, AjaxObject o, String basepath) throws IOException {
+		String oname = o.getName();
+		out.print("var ");
+		out.print(oname);
+		out.println(" = new (function(){");
+		out.print("var enc=");
+		AjaxSerializer.printJavascriptSerializer(out);
+		out.print(";var dec=");
+		AjaxSerializer.printJavascriptDeserializer(out);
+		out.print(";var call=function(mth,args){");
+		out.print("xhr = new XMLHttpRequest();");
+		out.print("xhr.open('post', '");
+		out.print(basepath);
+		out.print("/");
+		out.print(oname);
+		out.print(".'+mth, false);");
+		out.print("xhr.send(enc(args));");
+		out.print("return dec(xhr.responseText);");
+		out.println("};");
+		for (String s : o.getPublicMethods()) {
+			String[] pars = o.getPublicMethodParams(s);
+			out.print("this.");
+			out.print(s);
+			out.print("=function(");
+			boolean first = true;
+			for (String param : pars) {
+				if (first)
+					first = false;
+				else
+					out.print(", ");
+				out.print(param);
+			}
+			out.print("){return call('");
+			out.print(s);
+			out.print("',{");
+			first = true;
+			for (String param : pars) {
+				if (first)
+					first = false;
+				else
+					out.print(", ");
+				out.print(param);
+				out.print(": ");
+				out.print(param);
+			}
+			out.println("});}");
+		}
+		out.println("})()");
+	}
+}
diff --git a/NiHao/src/nihao/ajax/WebAjax.java b/NiHao/src/nihao/ajax/WebAjax.java
deleted file mode 100644
index c7a3c4e..0000000
--- a/NiHao/src/nihao/ajax/WebAjax.java
+++ /dev/null
@@ -1,106 +0,0 @@
-package nihao.ajax;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-
-import javax.servlet.ServletException;
-import javax.servlet.annotation.WebServlet;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import nihao.util.IoUtil;
-import nihao.util.Serializer;
-
-@WebServlet(name = "NiHao", urlPatterns = "/nihao/*")
-public class WebAjax extends HttpServlet {
-	private static final long serialVersionUID = 1L;
-
-	@Override
-	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		processRequest(request, response);
-	}
-
-	@Override
-	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		processRequest(request, response);
-	}
-
-	private void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		String url = request.getPathInfo();
-		if (url.endsWith(".js")) {
-			url = url.substring(1, url.length() - 3);
-			AjaxObject o = AjaxObject.get(url);
-			PrintWriter out = response.getWriter();
-			if (o != null)
-				pushObjectJS(out, o, request.getContextPath() + request.getServletPath());
-			else
-				out.print("Error");
-		} else if (url.contains(".")) {
-			int point = url.indexOf('.');
-			String method = url.substring(point + 1);
-			url = url.substring(1, point);
-			AjaxObject o = AjaxObject.get(url);
-			if (o == null)
-				response.getWriter().print("Call Error");
-			else
-				try {
-					Object result = o.invoke(method, IoUtil.readStringToEnd(request.getReader()));
-					response.getWriter().write(Serializer.serializeToJSON(result));
-				} catch (Throwable t) {
-					response.getWriter().print("Error " + t.getClass().getName() + ": " + t.getMessage());
-				}
-		} else
-			response.getWriter().print("Error");
-	}
-
-	private void pushObjectJS(PrintWriter out, AjaxObject o, String basepath) throws IOException {
-		String oname = o.getName();
-		out.print("var ");
-		out.print(oname);
-		out.println(" = new (function(){");
-		out.print("var enc=");
-		AjaxSerializer.printJavascriptSerializer(out);
-		out.print(";var dec=");
-		AjaxSerializer.printJavascriptDeserializer(out);
-		out.print(";var call=function(mth,args){");
-		out.print("xhr = new XMLHttpRequest();");
-		out.print("xhr.open('post', '");
-		out.print(basepath);
-		out.print("/");
-		out.print(oname);
-		out.print(".'+mth, false);");
-		out.print("xhr.send(enc(args));");
-		out.print("return dec(xhr.responseText);");
-		out.println("};");
-		for (String s : o.getPublicMethods()) {
-			String[] pars = o.getPublicMethodParams(s);
-			out.print("this.");
-			out.print(s);
-			out.print("=function(");
-			boolean first = true;
-			for (String param : pars) {
-				if (first)
-					first = false;
-				else
-					out.print(", ");
-				out.print(param);
-			}
-			out.print("){return call('");
-			out.print(s);
-			out.print("',{");
-			first = true;
-			for (String param : pars) {
-				if (first)
-					first = false;
-				else
-					out.print(", ");
-				out.print(param);
-				out.print(": ");
-				out.print(param);
-			}
-			out.println("});}");
-		}
-		out.println("})()");
-	}
-}