Loading external swfs in a sequence

I want to load external swfs into my main timeline. I have created an empty movieclip ,“myMC” and using loadMovie loaded the first swf. Now i want to load the second swf after the first one finishes playing. How do i do it? i do not want to add code to the external swfs as the sequence may change. I want to control the sequence from the main timeline

thanks in advance