diff --git a/assets/css/app.css.scss b/assets/css/app.css.scss
index 0939a03..f687711 100644
--- a/assets/css/app.css.scss
+++ b/assets/css/app.css.scss
@@ -31,7 +31,7 @@ $susy: (
 }
 
 .status_view {
-  @include span(2 at 22);
+  @include span(4 at 20);
   line-height : 1.25em;
 }
 
@@ -56,17 +56,29 @@ $susy: (
   background-color: #C5FFD9;
 }
 
+.statement {
+  margin-left: 10px;
+}
 .act{
   background-color: #00B3FF;
   -moz-border-radius: 7px;
 	-webkit-border-radius: 7px;
   font-size: 100%;
 }
-.run{
-  background-color: #00FF37;
+.crawl{
+  background-color: #009900;
+  -moz-border-radius: 7px;
+	-webkit-border-radius: 7px;
+}
+.run{
+  background-color: #00CC33;
+  -moz-border-radius: 7px;
+	-webkit-border-radius: 7px;
+}
+.wizz{
+  background-color: #00FF66;
   -moz-border-radius: 7px;
 	-webkit-border-radius: 7px;
-  font-size: 100%;
 }
 
 .bright {
@@ -76,3 +88,12 @@ $susy: (
   -moz-border-radius: 7px;
 	-webkit-border-radius: 7px;
 }
+
+.fade_in {
+  transition: background-color 100ms linear;
+  padding-right: 6px;
+  padding-left: 6px;
+  background-color: #00E3FF ;
+  -moz-border-radius: 7px;
+	-webkit-border-radius: 7px;
+}
diff --git a/lib/views/status_view.rb b/lib/views/status_view.rb
index 8d2f2d6..adb66db 100644
--- a/lib/views/status_view.rb
+++ b/lib/views/status_view.rb
@@ -11,7 +11,9 @@ class StatusView < ElementView
     @element = div(".status_view") <<
     div("h4" , "Interpreter" ) <<
       div("button.act" , "Next") <<
+      div("button.crawl" , "Crawl") <<
       div("button.run" , "Run") <<
+      div("button.wizz" , "Wizz") <<
       div( "br") <<
       div("span.clock" , clock_text) <<
       div( "br") <<
@@ -22,14 +24,18 @@ class StatusView < ElementView
       div("span.stdout")
     # set up event handler
     @element.at_css(".act").on("click") { self.update }
-    @element.at_css(".run").on("mousedown") { self.start }
+    @element.at_css(".crawl").on("mousedown") { self.start( 0.5 ) }
+    @element.at_css(".run").on("mousedown") { self.start( 0.1 ) }
+    @element.at_css(".wizz").on("mousedown") { self.start( 0.05 ) }
+    @element.at_css(".crawl").on("mouseup") { self.stop }
     @element.at_css(".run").on("mouseup") { self.stop }
+    @element.at_css(".wizz").on("mouseup") { self.stop }
     return @element
   end
 
 
-  def start
-    @running = true
+  def start(speed)
+    @running = speed
     run
   end
   def stop
@@ -42,7 +48,7 @@ class StatusView < ElementView
         self.update
         self.run
       end
-      proc.after( 0.001 )
+      proc.after( @running )
     rescue => e
       puts e
     end