eval

I have a script that creates new objects based on the value of a form
field. Basically, the code looks like this.

eval ('new ' + objType.value + '(val1, val2, val3');

objType is a select with the different types of objects you can create
as values.

I really don't like using eval, and it's causing problems, like if I
do something like the following:

eval ('localVar = new ' + objType.value + '(val1, val2, val3');

localVar should refer to a variable local to the calling object, but
with the eval approach it ends up being the local variable for the
scope from which the eval was first executed.

I could use a seitch statement, but this approach means I now have an
extra place where I need to change my code so I'd like to afford this
if possible.

Is there another approach to creating a new instance of an object
dependant on the value of some variable?
.

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