diff -r f971fb0f2a3e -r 43e261bcd4ce src/js/pop.js
--- a/src/js/pop.js	Tue Jan 31 17:22:10 2012 +0100
+++ b/src/js/pop.js	Wed Feb 01 12:40:45 2012 +0100
@@ -22,7 +22,11 @@
     "muted": false
   };
     
-  this.container = container.slice(1); //eschew the '#'
+  var id = container.split("#"); //eschew the '#'
+  if (id.length === 1)
+    this.container = id[0];
+  else if (id.length > 1)
+    this.container = id[1];
   
   this.msgPump = {}; /* dictionnary used to receive and send messages */
   this.__codes = []; /* used to schedule the execution of a piece of code in