addcallback alternative

I am working on a project and i needed to use ExternalInterface.addcallback. However, after using it i discovered that my flash was flickering heavily. I later discovered that there is a bug in the ExternalInterface method. Does anyone know of any good alternatives to addcallback? nothing obvious on google. :confused:

solved...it turns out the bug is not with externalinterface... but it is more to do with the fact that flash can not properly play in reverse ...i have opened another thread on it... hope someone will help

sorry wrong thread