diff --git a/src/swebdsl/Data.scala b/src/swebdsl/data/Data.scala
similarity index 78%
rename from src/swebdsl/Data.scala
rename to src/swebdsl/data/Data.scala
index 998e7f9..5f29ab4 100644
--- a/src/swebdsl/Data.scala
+++ b/src/swebdsl/data/Data.scala
@@ -1,20 +1,9 @@
-package swebdsl
+package swebdsl.data
 
 import com.google.appengine.api.datastore._
 import scala.collection.mutable.HashMap
 import scala.collection.mutable.ArrayBuffer
 
-trait Cache {
-  private var cache: HashMap[String, AnyRef] = new HashMap[String, AnyRef]
-
-  def cache[T](key: String, l: => T): T = {
-    if (!cache.contains(key)) {
-      cache(key) = l.asInstanceOf[AnyRef]
-    }
-    cache(key).asInstanceOf[T]
-  }
-}
-
 abstract class DataObject(key: String) {
   def singleton: DataObjectSingleton[_]
 
@@ -66,7 +55,7 @@ abstract class DataObject(key: String) {
 }
 
 
-abstract class DataObjectSingleton[T <: DataObject](var cls: Class[_]) {
+abstract class DataObjectSingleton[T <: DataObject](var cls: Class[T]) {
   def kind: String = cls.getSimpleName()
 
   def all(): ArrayBuffer[T] = {
@@ -106,7 +95,11 @@ abstract class DataObjectSingleton[T <: DataObject](var cls: Class[_]) {
       var keys = values.keySet().iterator()
       while (keys.hasNext()) {
         var key = keys.next()
-        cls.getMethod(key + "_$eq", cls.getMethod(key).getReturnType).invoke(e, values.get(key))
+        try {
+          cls.getMethod(key + "_$eq", cls.getMethod(key).getReturnType).invoke(e, values.get(key))
+        } catch {
+          case e: Exception =>
+        }
       }
       results.append(e)
     }
@@ -114,3 +107,21 @@ abstract class DataObjectSingleton[T <: DataObject](var cls: Class[_]) {
   }
 }
 
+object DataUtils {
+  def key2DataObject(cls: Class[_], key: String): AnyRef = {
+    if (cls.getSuperclass() != classOf[DataObject]) {
+      return null
+    }
+    var e = cls.newInstance().asInstanceOf[DataObject]
+    var ds = DatastoreServiceFactory.getDatastoreService()
+    e.ent = ds.get(KeyFactory.createKey(cls.getSimpleName(), key.toInt))
+    var values = e.ent.getProperties()
+    var keys = values.keySet().iterator()
+    while (keys.hasNext()) {
+      var key = keys.next()
+      cls.getMethod(key + "_$eq", cls.getMethod(key).getReturnType).invoke(e, values.get(key))
+    }
+    return e
+  }
+}
+
diff --git a/src/swebdsl/Forms.scala b/src/swebdsl/ui/Forms.scala
similarity index 94%
rename from src/swebdsl/Forms.scala
rename to src/swebdsl/ui/Forms.scala
index f4efc34..e0adc02 100644
--- a/src/swebdsl/Forms.scala
+++ b/src/swebdsl/ui/Forms.scala
@@ -1,4 +1,4 @@
-package swebdsl
+package swebdsl.ui
 
 import javax.servlet.http._
 
@@ -113,14 +113,14 @@ trait Forms {
     else
       throw new RuntimeException("Don't know how to create an input for " + a)
 
-  def action(s: String)(c: => Unit) {
+  def button(s: String)(c: => Unit) {
     actionCounter += 1
     mode match {
       case PageMode.Render => {
-        write("<input type=\"submit\" name=\"action-" + actionCounter + "\" value=\"" + s + "\">")
+        write("<input type=\"submit\" name=\"button-" + actionCounter + "\" value=\"" + s + "\">")
       }
       case PageMode.Action => {
-        if (request.getParameter("action-" + actionCounter) != null) {
+        if (request.getParameter("button-" + actionCounter) != null) {
           c
         }
       }
diff --git a/src/swebdsl/MainServlet.scala b/src/swebdsl/ui/MainServlet.scala
similarity index 72%
rename from src/swebdsl/MainServlet.scala
rename to src/swebdsl/ui/MainServlet.scala
index f213d7f..a27c74b 100644
--- a/src/swebdsl/MainServlet.scala
+++ b/src/swebdsl/ui/MainServlet.scala
@@ -1,13 +1,14 @@
-package swebdsl
+package swebdsl.ui
 
 import javax.servlet._
 import javax.servlet.http._
 import java.io._
-import scala.collection.mutable.HashMap
+import scala.collection.mutable.{HashMap, ArrayBuffer}
 import com.google.appengine.api.datastore._
 
 abstract class MainServlet extends HttpServlet {
   var pageMap = HashMap[String, String]()
+  var dataConverters = new ArrayBuffer[((Class[_], String) => AnyRef)]
 
   def pages: List[Page]
 
@@ -46,10 +47,20 @@ abstract class MainServlet extends HttpServlet {
             args(i) = pargs(i)
           } else if (argType == classOf[Int]) {
             args(i) = int2Integer(pargs(i).toInt)
-          } else if (argType.getSuperclass() == classOf[DataObject]) {
-            args(i) = key2DataObject(pargs(i), argType)
+            //} else if (argType.getSuperclass() == classOf[DataObject]) {
+            //args(i) = key2DataObject(pargs(i), argType)
           } else {
-            matches = false
+            var r: AnyRef = null
+            for (conv <- dataConverters) {
+              r = conv(argType, pargs(i))
+              if (r != null) {
+                matches = true
+                args(i) = r
+              }
+            }
+            if (r == null) {
+              matches = false
+            }
           }
           i += 1
         }
@@ -73,16 +84,4 @@ abstract class MainServlet extends HttpServlet {
     }
   }
 
-  private def key2DataObject(key: String, cls: Class[_]): DataObject = {
-    var e = cls.newInstance().asInstanceOf[DataObject]
-    var ds = DatastoreServiceFactory.getDatastoreService()
-    e.ent = ds.get(KeyFactory.createKey(cls.getSimpleName(), key.toInt))
-    var values = e.ent.getProperties()
-    var keys = values.keySet().iterator()
-    while (keys.hasNext()) {
-      var key = keys.next()
-      cls.getMethod(key + "_$eq", cls.getMethod(key).getReturnType).invoke(e, values.get(key))
-    }
-    return e
-  }
 }
diff --git a/src/swebdsl/Page.scala b/src/swebdsl/ui/Page.scala
similarity index 91%
rename from src/swebdsl/Page.scala
rename to src/swebdsl/ui/Page.scala
index f69edf7..4f7ec08 100644
--- a/src/swebdsl/Page.scala
+++ b/src/swebdsl/ui/Page.scala
@@ -1,5 +1,6 @@
-package swebdsl
+package swebdsl.ui
 
+import collection.mutable.HashMap
 import java.io._
 import javax.servlet.http._
 
@@ -10,6 +11,18 @@ object PageMode extends Enumeration {
 
 case class IgnoreMe()
 
+trait Cache {
+  private var cache: HashMap[String, AnyRef] = new HashMap[String, AnyRef]
+
+  def cache[T](key: String, l: => T): T = {
+    if (!cache.contains(key)) {
+      cache(key) = l.asInstanceOf[AnyRef]
+    }
+    cache(key).asInstanceOf[T]
+  }
+}
+
+
 abstract case class Page(ign: IgnoreMe) extends Forms with Cache {
   var sectionDepth = 1
   var style = new Style
@@ -28,6 +41,11 @@ abstract case class Page(ign: IgnoreMe) extends Forms with Cache {
     this.out = out
     this.request = req
     this.response = res
+    postInit
+  }
+
+  def postInit {
+
   }
 
   def resetCounters {
diff --git a/src/swebdsl/Style.scala b/src/swebdsl/ui/Style.scala
similarity index 89%
rename from src/swebdsl/Style.scala
rename to src/swebdsl/ui/Style.scala
index 618e6d2..ba9438b 100644
--- a/src/swebdsl/Style.scala
+++ b/src/swebdsl/ui/Style.scala
@@ -1,4 +1,4 @@
-package swebdsl
+package swebdsl.ui
 
 class Style {
   import scala.collection.mutable.Stack
@@ -53,6 +53,11 @@ class Style {
     this
   }
 
+  def native(s: String)(c: => Unit) = {
+    setSelector(s, c)
+    this
+  }
+
   def body(c: => Unit): Style = {
     setSelector("body", c)
     this
@@ -101,18 +106,6 @@ class Style {
 
   def setSpecificStyle(css: String) {
     this.css.append(css)
-    /*
-    var s : Style = this
-    while(s.parent != null) {
-      s = s.parent
-    }
-    val key = s.styleStack map(_.name) mkString(" >> ")
-    if(s.styles contains key) {
-      s.styles(key).append(css)
-    } else {
-      s.styles(key) = new StringBuffer(css)
-    }
-    */
   }
 
   override def toString: String =