--- a/labs/openlayers/tools/oldot.py
+++ b/labs/openlayers/tools/oldot.py
@@ -1,1 +1,44 @@
+import re
+import os    
+def run():
+    sourceDirectory = "../lib/OpenLayers"    
+    allFiles = []
+    SUFFIX_JAVASCRIPT = ".js"
+    ## Find all the Javascript source files
+    for root, dirs, files in os.walk(sourceDirectory):
+        for filename in files:
+            if filename.endswith(SUFFIX_JAVASCRIPT) and not filename.startswith("."):
+                filepath = os.path.join(root, filename)[len(sourceDirectory)+1:]
+                filepath = filepath.replace("\\", "/")
+                data = open(os.path.join(sourceDirectory, filepath)).read()
+                parents = re.search("OpenLayers.Class\((.*?){", data, 
+                      re.DOTALL)
+                if parents:
+                    parents = [x.strip() for x in parents.group(1).strip().strip(",").split(",")]
+                else: 
+                    parents = []
+                cls = "OpenLayers.%s" % filepath.strip(".js").replace("/", ".")
+                allFiles.append([cls, parents])
+    return allFiles
+print """
+digraph name {
+  fontname = "Helvetica"
+  fontsize = 8
+  K = 0.6
 
+  node [
+    fontname = "Helvetica"
+    fontsize = 8
+    shape = "plaintext"
+  ]
+"""
+
+for i in run():
+    print i[0].replace(".", "_")
+    for item in i[1]:
+        if not item: continue
+        print "%s -> %s" % (i[0].replace(".","_"), item.replace(".", "_"))
+    print "; "
+
+print """}"""
+