JQuery Validation With Multiple Sets Of Radio Buttons - php

Question

I have a form that did submit 1 out of 8 radio buttons to a php $_POST super global array. Therefore, I needed some validation. I was kindly helped by being provided this code which works great:
$("#form").submit(function (event) {
if(!$(":radio:checked").length) {
alert("You must select at least one emotional state!");
event.preventDefault();
}
});
However, I have now been asked to have 2 sets of 8 radio buttons in which the user selects 2 answers instead of the initial 1 answer. I need the code to be able to determine that at least one radio button from each set of 8 buttons has been selected before the form is submitted. At the moment the code checks to see if any radio buttons have been selected, then as soon as just 1 buttons is selected, the function is satisfied and transitions to the next page, which is not what I want.
EDIT
Buttons code:
<p><input type="radio" value="happy" name="perceived_emotion">Happy
<input type="radio" value="excited" name="perceived_emotion">Excited
<input type="radio" value="angry" name="perceived_emotion">Angry
<input type="radio" value="frustrated" name="perceived_emotion">Frustrated
<input type="radio" value="miserable" name="perceived_emotion">Miserable
<input type="radio" value="sad" name="perceived_emotion">Sad
<input type="radio" value="tired" name="perceived_emotion">Tired
<input type="radio" value="relaxed" name="perceived_emotion">Relaxed</p>
<p><input type="radio" value="happy" name="induced_emotion">Happy
<input type="radio" value="excited" name="induced_emotion">Excited
<input type="radio" value="angry" name="induced_emotion">Angry
<input type="radio" value="frustrated" name="induced_emotion">Frustrated
<input type="radio" value="miserable" name="induced_emotion">Miserable
<input type="radio" value="sad" name="induced_emotion">Sad
<input type="radio" value="tired" name="induced_emotion">Tired
<input type="radio" value="relaxed" name="induced_emotion">Relaxed</p>
Here is the form code:
<form id="form" action="audio_handler.php?id=1" method="POST">
<div id="perceived_emotions">
<?php include("includes/induced_emotion_buttons.php"); ?>
</div>
<br />
<div id="induced_emotions">
<?php include("includes/perceived_emotion_buttons.php"); ?>
</div>
<p class="right"><input type="submit" name="submit" value="Submit"></p>
</form>

Answer 1

What you want to do is use the [name="value"] selector in JQuery in conjunction with the :checked selector. So your new code would be:
if(!$('input[name="perceived_emotion"]:checked').length) {
alert("You must select at least one perceived emotional state!");
event.preventDefault();
return false;
}
if(!$('input[name="induced_emotion"]:checked').length) {
alert("You must select at least one induced emotional state!");
event.preventDefault();
return false;
}
All of that wrapped into the form event.
EDIT: Since you only want to display one dialog at once, just add return false; in each if statement.