enabling submit button after selection in radio button form

ketanco

Hello,

How can I check if a radio button is selected? Only then I want the submit button to be enabled.

As an example, I have these two lines below,but that was for when the form was submitting to itself, and it was disabling after the answer was submitted.

Now the form is submitting to another file, not to itself anymore. So the two lines below does not serve my purpose, I am just writing as an example. How can I enable submit button only after user selects a radio button? Right now even if the user doesnt select anything and slicks submit, an emptry response is submitted, which I dont want.

$disbld = (isset($_POST['answer'])) ? " disabled='disabled'" : null;

echo "<input type=\"submit\" name=\"submitname\" value=\"submit my answer\"{$disbld}/>";

cahva

This needs a little javascript. Heres a little example:

<form name="myform">
<input type="radio" name="radiob" value="1" onclick="document.myform.send.disabled = false;" />
<input type="radio" name="radiob" value="2" onclick="document.myform.send.disabled = false;" />
<input type="submit" name="send" disabled="disabled" value="Send" />
</form>

Its not the most sophisticated way but you'll get the idea..

ketanco

Okay what I chose to do was, on the second file that the form submits to, I say if the response is null, then display the first form file again. However, it brings up only the submit button, nothing else. Why might tat be?

(Note: I also tried bringing up a intermediate file, which refreshes to the first file that displays the form, such as :<meta http-equiv="refresh" content="5;url=http://......./pollq.php"> That also just brings up the submit button, nothing else, no radio button options or anything. )

if (is_null($response))
{
include("pollq.php");
}
else
{//the rest of the entire code that updates and displays the answer}

So again, when pollq is called if the answer is null, it only dsplays the submit button. What might be the reason and how can I fix so it brings the whole form again, like it correctly does at the first loading?

bpat1434

We'd actually have to see your code (using [noparse]

[/noparse] tags around your php code please) to really be able to see what you're doing.