Bind a variable to a function?

[JkWhoSaysNi]

Ok, after my lack of success in the last thread I'm attempting to build an associative array manually. (Hopefully with more functionaility too, like being able to iterate through it.)

What I want to achieve is standard in OOP, but i'm not sure whether it's possible in GS.

The code will hopefully make more sense:

PHP Code:

function array(indexes,values) {
  this.inds = indexes;
  this.vals = values;
  this.item = item(); 
  return this;
}

function item(ind) {
   return this.vals[this.inds.index(ind)];
}

//then use like:
arr = array({"a","b","c"},{"one","two","three"});
var = arr.item("b"); //var should be "two" 


Is this kind of thing possible? I'm trying to achieve some pretty basic OO functionality.

If this is possible it'd really help me with a lot of scripts.

Thanks.