IE and document.innerhtml()

Question

This works in firefox but not in IE7/8:

<script type="text/javascript">
    //<![CDATA[
$(document).ready(function() {

    $.get('page.php', function(data){

        document.innerHTML = data;

    });

});    //]]>
</script>

This also works in Firefox but not in IE7/8:

<script type="text/javascript">
    //<![CDATA[
$(document).ready(function() {

    $.get('page.php', function(data){

        document.innerHTML.options[0]=new Option(data);

    });

});    //]]>
</script>

Any suggestions?