Problem with IE in javascript, tested ok with Firefox,Opera, Safar &,Chrome

[pippogr]

I have two selection list, which the second one populates depending at the selection of the first.

      <select id="category" onchange="getRegions('1',this.value,'region','imagediv1')" >
        <option selected="selected" value="" > Please Select Category</option>
         <?php
         do {  
          print ("<option value=\"".$row_Recordset1['id_categories_pk']."\"");
 
          print(">".$row_Recordset1['category_name']."</option>");
 
        } while ($row_Recordset1 = mysql_fetch_assoc($Recordset1));
              $rows = mysql_num_rows($Recordset1);
                  if($rows > 0) {
                      mysql_data_seek($Recordset1, 0);
                      $row_Recordset1 = mysql_fetch_assoc($Recordset1);
                  }
        ?>
      </select>

Second one

<select id="region" onChange="getImage('category',this.value,'imagediv1')" >
    <option selected value="">Select Category First</option>
     </select></div></td>

function getRegions(languageId,categoryId,element) {        
 
        enable_list(element);
        var strURL="regions.php?language="+languageId+"&category="+categoryId;
 
        var req = getXMLHTTP();
 
        if (req) {
 
            req.onreadystatechange = function() {
                if (req.readyState == 4) {
                    // only if "OK"
                    if (req.status == 200) {                        
                        document.getElementById(element).innerHTML=req.responseText;                        
                    } else {
                        alert("There was a problem while using XMLHTTP:\n" + req.statusText);
                    }
                }                
            }            
            req.open("GET", strURL, true);
            req.send(null);
        }
 
    }

The problem ( only in IE), the second list is complete blank.I think the problem is at getRegions('1',this.value,'region') with this.value or with getElementById.

What i have to change to above code so the IE will be ok?

[acoder]

This is an IE bug: see here. However, don't use outerHTML. Use a loop to add each option individually.