Current implementation of Deploy toolkit may not be able to handle install status reporting when multiple applets on the same page requesting install of a JRE or FX.

e.g. it may not handle the case when multiple applets on the same page
 requesting a install of FX version X. Say applet A is deployed
 without install javascript callback and applet B on the same page
 want to use the same JRE and has install callback. B will not know
 about FX version X is being installed.