A question in js :)

Question

Would we be able to change the name of a variable later but not when defining it?, if so, how could that be done?, if not, is there any way to get series of variables with the same name but different number(i.e cir1, cir2, cir3,....etc) by defining it only once in function and then call the function at a later time in the code?.
thanks guys in advance.

Answer 1

just define a global array
var cir = [];

// later codes
cir[0] = 1;

Answer 2

Errrr I am not sure but I think it is possible for eval or exec to do the job :)