How to use a variable as a part of an object

To change the value of input boxes I use
  document.MyForm.MyInput1.value = "Test";
  document.MyForm.MyInput2.value = "Test";

Is it also possible to use a variable instead of MyInput1 and MyInput2?
I'm thinking about something like
  var MyVariable = "MyInput1";
  document.MyForm.MyVariable.value = "Test";

Stefan
Received on Sat Dec 3 04:33:56 2005