writing to a form

[theamazingninja]

I wanted to create a form button so when you click on it, it writes to a form text input.

this is what i have but it does not work. please help!

<input type="button" value="+" onclick="document.write.form.inputname('+')";>

is this right?

please explain what i am doing wrong?

[Korsad]

In the "document. write.forum.inputname", what does the "write" stand for?

[sans-hubris]

Someone needs an introduction to the DOM (http://www.mozilla.org/docs/dom/domref/).