selector css3 :checked not working in IE8 (using ie7.js)

Question

I have radio buttons like this:

<input class="check" type="radio" id="radio1" name="group"/>
<label for="radio1">vrai</label>
<input class="check" type="radio" id="radio2" name="group"/>
<label for="radio2">faux</label>
<input class="check" type="radio" id="radio3" name="group"/>
<label for="radio3">75</label>
<input class="check" type="radio" id="radio4" name="group"/>
<label for="radio4">18</label>

I had the selected class when that are :checked , but strangely even using ie7.js it does not work in ie8.

Here is my js:

$(document).ready(function() {
    $('input:checked').addClass("selected");
    $('input').click(function () {
        $('input:not(:checked)').removeClass("selected");
        $(this).addClass("selected");
    });
});

Answer 1

not sure if it has to do but I would rewrite the following and see if it changes something:

$('input').not('input:checked').removeClass("selected");
$(this).addClass("selected");

Answer 2

Try using change() instead of click()

$(document).ready(function() {
    $('input:checked').addClass("selected");
    $('input').change(function () {       // <--- HERE
        $('input:not(:checked)').removeClass("selected");
        $(this).addClass("selected");
    });
});

Answer 3

Hy, i have made pure javascript solution for you which works accross all browser. please have a look if it is useful for you

         <script type="text/javascript">
                function check(selected)
                {
                  var inputs= document.getElementsByTagName('input');
                  for(i=0 ; i < inputs.length; ++i)
                  {

                       inputs[i].className="";
                  }
                  selected.className="selected";
                }
        </script>

        <input class="check" type="radio" id="radio1" name="group" onclick="check(this);"/>
        <label for="radio1">vrai</label>
        <input class="check" type="radio" id="radio2" name="group" onclick="check(this);"/>
        <label for="radio2">faux</label>
        <input class="check" type="radio" id="radio3" name="group" onclick="check(this);"/>
        <label for="radio3">75</label>
        <input class="check" type="radio" id="radio4" name="group" onclick="check(this);"/>
        <label for="radio4">18</label>