How to Hide and Show OPTIONS of a dropdown with JQuery in IE

Question

So i have tried this to get it working. It works fine on Firefox and Chrome but doesn't work on IE as always. My idea about the Javascript function was i look in the first option box and look when it get changed. When changed it should grab the value of the the option box and look for it in the second one. Then display just the Optionswith the same value.

The PHP code :

<label style="width:100px;float:left;">f&uuml;r das Revier:*</label>
    <select class="required"  id="reviernummer" style="width:240px;"name="verhaltenscode" ' >
    <?php $selected = $arrayAktuellerDatensatz['verhaltenscode'];?>
        <option selected ="selected" value="<?php echo $selected; ?>"><?php echo $selected; ?></option>
        <?php loadselect('kataster', 'Fischereibuchzahl', 'Fischereibuchzahl');?>
    </select><br />

    <select class="required" id="verhaltenscode" style="width:240px;" name="verhaltenscode">
        <?php $selected = $arrayAktuellerDatensatz['verhaltenscode_neu'];?>
        <option selected ="selected" value="<?php echo $selected; ?>"><?php echo $selected; ?></option>
        <?php loadselect('helpbrutstatus', 'Brutstatus', 'Brutstatus');?>

loadselect function:

if ($tblname == 'kataster'){
    $query = "SELECT * FROM kataster";
    $result = mysql_query($query) or die(mysql_error());
    while($row = mysql_fetch_array($result)){
        $fieldvalue = $row['Fischereibuchzahl'];
        $fieldcaption = $row['Fischereibuchzahl'];
        $lat = $row['Benennung']?>
        <option title="<?php echo $lat; ?>" value="<?php echo $fieldvalue;?>"><?php echo $fieldcaption .'&nbsp;|&nbsp;'.$lat?></option> <?php
        }
    }
    else if ($tblname == 'helpbrutstatus'){

    $query = "SELECT * FROM helpbrutstatus" ;

    $result = mysql_query($query) or die(mysql_error());
    while($row = mysql_fetch_array($result)){
        $fieldvalue = $row['Fischereibuchzahl'];
        $status = $row['Fischereibuchzahl'];
        $fieldcaption = $row['Brutstatus']; ?>
        <option value="<?php echo $fieldvalue;?>" title="<?php echo $status;?>"  class="sorted">
        <?php echo $status."&nbsp;|&nbsp;".$fieldcaption?></option>  <?php
        }
}

Javascript function:

reviernummer.onchange = function() {
  var look = $("#reviernummer").val();
  $("option[class='sorted']").each(function(index, val) {
    if ($(this).is('option') && (!$(this).parent().is('span')))
      $(this).wrap((navigator.appName == 'Microsoft Internet Explorer') ? '<span>' : null).hide();
  });
  $("option[title='" + look + "']").each(function(index, val) {
    if (navigator.appName == 'Microsoft Internet Explorer') {
      if (this.nodeName.toUpperCase() === 'OPTION') {
        var span = $(this).parent();
        var opt = this;
        if ($(this).parent().is('span')) {
          $(opt).show();
          $(span).replaceWith(opt);
        }
      }
    } else {
      $(this).show(); //all other browsers use standard .show()
    }
  });
};