Java script windo handling

If you are doing this from the main window:<script type="text/javascript">

// alerts the value of text box from a child window.
alert(window.child_name.form_name.field_name.value);
// puts value of child text box into main text box.
document.main_form_name.main_field_name.value = window.child_name.document.form_name.field_name.value;

</script>At least I think ^^. From the child window:<script type="text/javascript">

// puts value of child text box into main text box.
window.opener.document.main_form_name.main_field_name.value = document.form_name.field_name.value;

</script>Both script do the intention, get the child text box, and store its value in the main text field. The first code would be if it runs i nthe main window, the second, if the code is in the child window.

Dr. Script