call a new seperate window form field

[hunt00]

How could i call/put value to a new seperate window form field?

for example, the new window form name="formNew", with an input field name="windowNew_input" id="windowNew_input".

On current window, using :
document.formNew.windowNew_input.value = "test";

this ends up with error

 

[thechasboi]

hunt00

What exactly do you mean? I am thinking you would like to fill in an input value using javascript. You can do this as long as the input type is not file. All you would need to do is this document.getElementById('windowNew_input').value='some text';. I would suggest you use a function for this. If you would like to append or add this to the form that is possible as well. Hope this helps.