Please Help! custom function call

Hy!
I seem to have run into a more delicate problem. I want to execute a custom function from action script, a function with a name that is trasmitted trough a string.

For example function named **Move **[

Move = function(arg1){..}

] i want to do something like
callfunction(“Move”,arg1);

is this at all posibile in Action Script?
or it would be even better if the script could internally execute a string like a misc function in php.
e.g.:

eval("Move(a);") 

[COLOR=Silver]eval() evaluates the string given in code_str as PHP code. Among other things, this can be useful for storing code in a database text field for later execution. [/COLOR]
How bout that? Possible?

If anyone was some insight into the problem it would be greatly apreciated.
Thanks everyone!