use of $ passed to the ready() function / compat with noConflict

index.html

@@ -5,7 +5,7 @@
         <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script>
         <script src="js/jquery.knob.js"></script>
         <script>
-            $(function() {
+            $(function($) {
 
                 $(".knob").knob({
                     change : function (value) {