set one field equal to another

Question

I have:

<form>
<input id="A" name="B">
<input id="C" name="D">
</form>

And I need to set the second input equal to the first whenever the first input is changed. Something like:

$(function() {
   $('input#A').change(function() {
   $('input#C').val(this.text);
   });
});

Answer 1

This should do the trick:

$(function() {
   var myInput = $('#A');
   myInput.change(function() {
       $('#C').val(myInput.val());
   });
});