[JavaScript] JS w IE... Opcje

[no-scared]

Czemu taka funkcja:

[HTML] pobierz, plaintext 
function showAddSubjectForm(id)
        {
            if(document.getElementById('new_subject').innerHTML.search('<form') != -1)
            {
                return;
                }
            var form_string = (<r><![CDATA[
            
            <form id="newQuestionFormId" action="index.php5?<?php echo pobierz_get(array('new_question'), array('1')) ?>" method="post">
    <table id="newQuestionForm" cellpadding="5">
            <tr>
    <td>
    Dział:
    </td>
    <td style="color: red; text-align: left; padding-left: 20px;" colspan="2">
 
    ]]></r>).toString();
 
    form_string += id;
 
 
    form_string += (<r><![CDATA[
    </td>
    <td>
    &nbsp;
    </td>
    </tr>
 
    <tr>
    <td>
    Temat:
    </td>
    <td colspan="2">
    <input type="text" style="width: 150px;" name="q_subject" /> &nbsp;
    Ksywka: <?php echo (!empty($_SESSION['login']) ? $_SESSION['login'] :
                '<input type="text" style="width: 150px" name="q_nick" />') ?>
    </td>
    </tr>
 
    <tr>
    <td>
    Treść:
    </td>
    <td colspan="2">
    <textarea name="q_tresc" style="width: 370px; height: 200px;"></textarea>
    </td>
    </tr>
 
    <tr>
    <td colspan="3" style="text-align: center;">
    <input type="submit" value="Dodaj" /> &nbsp;&nbsp;<input type="button" value="Zamknij" onclick="var sub = document.getElementById('newQuestionFormId'); sub.parentNode.removeChild(sub);"  />
    </td>
    </tr>
 
            </table>
    </form>
 
    ]]></r>).toString();
    var subject_element = document.getElementById('new_subject');
    subject_element.innerHTML += form_string;
            }
[HTML] pobierz, plaintext 

Działa mi poprawnie w Firefoxie, a w ie już nie?