Index: popups.js
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/popups/popups.js,v
retrieving revision 1.9.8.15
diff -u -p -r1.9.8.15 popups.js
--- popups.js	26 Mar 2009 17:30:54 -0000	1.9.8.15
+++ popups.js	1 Apr 2009 13:51:27 -0000
@@ -598,8 +598,12 @@ Popups.removePopup = function(popup) {  
   }
   if (popup) {
     popup.$popup().remove();
-    Popups.popupStack.splice(Popups.popupStack.indexOf(popup), 1); // Remove popup from stack.  Probably should rework into .pop()
-  }  
+    for (var i = 0; i < Popups.popupStack.length; i++) {
+      if (Popups.popupStack[i] == popup) {
+        Popups.popupStack.splice(i, 1);  // Remove popup from stack.  Probably should rework into .pop()
+      }
+    }
+  }
 }; 
 
 /**