I try to set some hidden form field values with an onclick event. Ok, after I did something like this:

document.getElementById('hidden_field').value = 123;

I can output the value with the firebug console by entering this:

alert(document.getElementById('hidden_field').value);

So the values are definitely set. But now when I submit the form, the hidden field values are still empty.

Do you have any idea whats going wrong?

I try to set some hidden form field values with an onclick event. Ok, after I did something like this:

document.getElementById('hidden_field').value = 123;

I can output the value with the firebug console by entering this:

alert(document.getElementById('hidden_field').value);

So the values are definitely set. But now when I submit the form, the hidden field values are still empty.

Do you have any idea whats going wrong?

• javascript
• forms

• 2 You will need to post your HTML – Keith Rousseau Commented Jun 3, 2010 at 12:36
• Check if your 'hidden_field' is inside the form element, it contains name and id attributes and form is posted correctly. – Nilambari Commented Jun 3, 2010 at 12:37
• 1 You can install something like TamperData to see what's in the actual HTTP request/response blocks. – Pointy Commented Jun 3, 2010 at 12:37

1 Answer 1

Make sure your hidden field has the name attribute:

<input id="hidden_field" name="hidden_field" type="hidden" value="123" />

Inputs without a name attribute aren't sent with the request.