Elemente ausgrauen bitte um Hilfe

[Chris]

Das Beispiel funktioniert in FireFox und Opera einwandfrei. nur der IE spielt nicht mit.
Ziel ist es nur mittel angewählten Radio-buttons Element ausgrauen.
Gibs vielleicht ne bessere Lösung ?

Dank im Vorraus ;)

<style type="text/css">  
.text1 {  
 color:#999999;  
 text-align:left;  
}  
</style>  
  
  
<br>  
<form action="upload.php" method="get" name="formname">  
  <p class="text1">  
     Auswahl 1  
     <input onclick="javascript:select_target_1()" type="radio" value="set_mygallerie" name="select_set" id="radio_add_gal">  
      <select id="id_select_gal" name="name_select_gal">  
  
          <option>Option 1</option>          </select>  
  
     </p>  
          <p class="text1">Auswahl 2  
     <input onclick="javascript:select_target_2()" type="radio" value="set_newgallerie" name="select_set" id="radio_new_gal">  
     <input type="text" name="new_gal_name" maxlength="50" id="id_input_newgal">  
     Kategorie: <select name="name_select_inkat" id="id_select_inkat">  
      <option>Option 1</option><option>Option 2</option><option>Option 3</option><option>Option 4</option></select>  
  
     </p>  
     <p class="text1">Auswahl 3  
     <input onclick="javascript:select_target_3()" type="radio" value="set_onepic" name="select_set" id="radio_one_pic">  
     Kategorie: <select name="name_select_kat" id="id_select_kat">  
      <option>Option 1</option><option>Option 2</option><option>Option 3</option><option>Option4</option></select>  
      </p>  
</form>  
  
<script type="text/javascript">  
setdisabledidselectgal = document.createAttribute("disabled");  
setdisabledidselectgal.nodeValue = "disabled";  
  
setdisabledidinputnewgal = document.createAttribute("disabled");  
setdisabledidinputnewgal.nodeValue = "disabled";  
  
  
setdisabledidselectinkat = document.createAttribute("disabled");  
setdisabledidselectinkat.nodeValue = "disabled";  
  
setdisabledidselectkat = document.createAttribute("disabled");  
setdisabledidselectkat.nodeValue = "disabled";  
function select_target_1(){  
 document.getElementById("id_input_newgal").setAttributeNode(setdisabledidinputnewgal);  
 document.getElementById("id_select_inkat").setAttributeNode(setdisabledidselectinkat);  
 document.getElementById("id_select_kat").setAttributeNode(setdisabledidselectkat);  
 document.getElementById("id_select_gal").removeAttribute("disabled");  
  
}  
function select_target_2() {  
 document.getElementById("id_select_gal").setAttributeNode(setdisabledidselectgal);  
 document.getElementById("id_select_kat").setAttributeNode(setdisabledidselectkat);  
 document.getElementById("id_input_newgal").removeAttribute("disabled");  
 document.getElementById("id_select_inkat").removeAttribute("disabled");  
  
}  
function select_target_3(){  
 document.getElementById("id_select_gal").setAttributeNode(setdisabledidselectgal);  
 document.getElementById("id_input_newgal").setAttributeNode(setdisabledidinputnewgal);  
 document.getElementById("id_select_inkat").setAttributeNode(setdisabledidselectinkat);  
 document.getElementById("id_select_kat").removeAttribute("disabled");  
  
}  
</script>