Question

With help from @Joseph I have managed to create this script that works exactly the way I want it to on jsfiddle. However, when I use the exact same script on my webpage it does not do anything, it ignores the script inside the if and else and works like a normal radio button would do. I don’t get any errror messages and I am using:

http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js 
http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.js

The only thing that I can think of is that it does not work using “this”? How would I solve that?

My script can be found at:
http://jsfiddle.net/pJgyu/15013/

jQuery(document).ready(function ()
{
    $("input[type='radio']").click(function(){
    var $knapp = $(this).val();      

    if(($knapp=='1c') || ($knapp=='2c')|| ($knapp=='3c')) {
        this.checked = true;  
    }else{
        $("input[type='radio']."+this.className).not($(this)).each(function(){
            this.checked = false;
        });
    }
});
});

<table>   
<tr> 
<td>1</td> 
<td><input type="radio" class="ljudkalla_1" name="ljudkalla_1" value="1a"></td> 
<td><input type="radio" class="ljudkalla_2" name="ljudkalla_1" value="1b"></td> 
<td><input type="radio" class="ljudkalla_3" name="ljudkalla_1" value="1c"></td> 
</tr>
<tr> 
<td>2</td> 
<td><input type="radio" class="ljudkalla_1" name="ljudkalla_2" value="2a"></td> 
<td><input type="radio" class="ljudkalla_2" name="ljudkalla_2" value="2b"></td> 
<td><input type="radio" class="ljudkalla_3" name="ljudkalla_2" value="2c"></td> 
</tr>
<tr> 
<td>3</td> 
<td><input type="radio" class="ljudkalla_1" name="ljudkalla_3" value="3a"></td> 
<td><input type="radio" class="ljudkalla_2" name="ljudkalla_3" value="3b"></td> 
<td><input type="radio" class="ljudkalla_3" name="ljudkalla_3" value="3c"></td> 
</tr>
</table>

Answer 1

I think this is what you are after, correct? Does this work on your local machine?

$("input").click(function() {
    if (this.className.indexOf('3') === -1) {
        $("input." + this.className).not($(this)).each(function() {
            this.checked = false;
        });
    }
});