clearing variables

[ru55]

I'm working on a movie that sends lots of different (virtual) arrays to and from a cgi script. I'm running into problems when I reuse routines when<br>previous uses dealt with more variables (the 'lower' ones get overwritten but the 'higher' ones linger & get sent to the CGI) is there a way to clear variables? I've set up seperate movie clips for each type of data transfer I'm making & then action script inside the movie clipis called. I've tried duplicating a clip (with the intention of recreating/deleting the duplicate after each transfer) but I can't seem to call the actionscript within aduplicate. Where have I gone astray??