diff --git a/.gitignore b/.gitignore
index 55419af..96bc49b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 nimcache/
 /tests/tester
 /tools/karun
-*.code-workspace
\ No newline at end of file
+*.code-workspace
+*.exe
diff --git a/experiments/config.nims b/experiments/config.nims
new file mode 100644
index 0000000..532b206
--- /dev/null
+++ b/experiments/config.nims
@@ -0,0 +1 @@
+--path: "../src"
diff --git a/experiments/scrollapp_simple.nim b/experiments/scrollapp_simple.nim
new file mode 100644
index 0000000..cdd19cd
--- /dev/null
+++ b/experiments/scrollapp_simple.nim
@@ -0,0 +1,25 @@
+## Example that shows how to accomplish an "infinitely scrolling" app.
+
+include karax / prelude
+import karax / [kdom, vstyles]
+
+var entries: seq[cstring] = @[]
+for i in 1..500:
+  entries.add(cstring("Entry ") & &i)
+
+proc scrollEvent(ev: Event; n: VNode) =
+  let d = n.dom
+  if d != nil and inViewport(d.lastChild):
+    # "load" more data:
+    for i in 1..50:
+      entries.add(cstring("Loaded Entry ") & &i)
+
+proc createDom(): VNode =
+  result = buildHtml():
+    tdiv(onscroll=scrollEvent, style=style(
+        (StyleAttr.height, cstring"400px"), (StyleAttr.overflow, cstring"scroll"))):
+      for x in entries:
+        tdiv:
+          text x
+
+setRenderer createDom
diff --git a/karax/jwebsockets.nim b/karax/jwebsockets.nim
index c662ad1..2b1412e 100644
--- a/karax/jwebsockets.nim
+++ b/karax/jwebsockets.nim
@@ -6,6 +6,7 @@ type
 
   WebSocket* {.importc.} = ref object
     onmessage*: proc (e: MessageEvent)
+    onopen*: proc (e: MessageEvent)
 
 proc newWebSocket*(url, key: cstring): WebSocket
   {.importcpp: "new WebSocket(@)".}
diff --git a/karax/kajax.nim b/karax/kajax.nim
index 2fd14fa..800d315 100644
--- a/karax/kajax.nim
+++ b/karax/kajax.nim
@@ -5,7 +5,7 @@
 
 import karax
 
-proc ajax(meth, url: cstring; headers: openarray[(cstring, cstring)];
+proc ajax*(meth, url: cstring; headers: openarray[(cstring, cstring)];
           data: cstring;
           cont: proc (httpStatus: int; response: cstring);
           kxi: KaraxInstance = kxi,
@@ -61,5 +61,17 @@ proc ajaxGet*(url: cstring; headers: openarray[(cstring, cstring)];
           kxi: KaraxInstance = kxi) =
   ajax("GET", url, headers, nil, cont, kxi)
 
+proc ajaxPut*(url: cstring; headers: openarray[(cstring, cstring)];
+          data: cstring;
+          cont: proc (httpStatus: int, response: cstring);
+          kxi: KaraxInstance = kxi) =
+  ajax("PUT", url, headers, data, cont, kxi)
+
+proc ajaxDelete*(url: cstring; headers: openarray[(cstring, cstring)];
+          cont: proc (httpStatus: int, response: cstring);
+          kxi: KaraxInstance = kxi) =
+  ajax("DELETE", url, headers, nil, cont, kxi)
+
+
 proc toJson*[T](data: T): cstring {.importc: "JSON.stringify".}
 proc fromJson*[T](blob: cstring): T {.importc: "JSON.parse".}
diff --git a/karax/karax.nim b/karax/karax.nim
index 0359e59..433f842 100644
--- a/karax/karax.nim
+++ b/karax/karax.nim
@@ -260,6 +260,7 @@ proc updateStyles(newNode, oldNode: VNode) =
   if oldNode.dom != nil:
     if newNode.style != nil: applyStyle(oldNode.dom, newNode.style)
     else: oldNode.dom.style = Style()
+    oldNode.dom.class = newNode.class
   oldNode.style = newNode.style
   oldNode.class = newNode.class