Javascript variables not propogating through

Answer 1

This is due to closure of variable i.

Introduce another scope like,

(function(i){
marker.events.register('mousedown', marker, function(evt) { 
                    popup = new OpenLayers.Popup.FramedCloud(null, 
                                       lonlat[i], 
                                       null, 
                                       infodiv[i], 
                                       anchor=null,true,null); 

                    map.addPopup(popup); 

                    OpenLayers.Event.stop(evt);  

                });
})(i);