Script help

[DRedshot]

If I wanted to make a subscript which made a door bang a number of times, at a set speed, Is there a way to 'make' my own function to do this.
I know you can call different scripts to run with:
Func();

but is there a way to store integers or strings in these callbacks? This is what I want to do:

Func(string i = asEntity);

void Func(string &in i)
{
// Do Stuff
}

How can I do this? if there is a way?
Thanks