รบกวนสอบถามเรื่องการสร้าง createElement('select'); selectmenu / listmenu / dropdownlist

<script language="javascript">
function fncCreateElement(){

var mySpan = document.getElementById('mySpan');

var myLine = document.getElementById('hdnLine');
myLine.value++;

var myElement1 = document.createElement('select');
myElement1.setAttribute('type',"select");
myElement1.setAttribute('name',"technicianID[]");
myElement1.setAttribute('id',"technicianID"+myLine.value);
mySpan.appendChild(myElement1);

var objDll = document.getElementById("select-id");

<?
while($rs=mysql_fetch_array($qr))
{
?>
var Noption = new Option('<?=$rs["technicianID"];?>', '<?=$rs["technicianNAME"];?>');
objDll.options[objDll.length] = Noption;
<?
}
?>


// Create <br>
var myElement2 = document.createElement('<br>');
myElement2.setAttribute('id',"br"+myLine.value);
mySpan.appendChild(myElement2);
}

function fncDeleteElement(){

var mySpan = document.getElementById('mySpan');

var myLine = document.getElementById('hdnLine');

if(myLine.value > 1 )
{

// Remove input file
var deleteEle = document.getElementById("fil"+myLine.value);
mySpan.removeChild(deleteEle);

// Remove <br>
var deleteBr = document.getElementById("br"+myLine.value);
mySpan.removeChild(deleteBr);

myLine.value--;
}
}
</script>

<form action="php_multiple_upload2.php" method="post" name="form1" enctype="multipart/form-data">
<select name="technicianID[]" id="technicianID" >
            <?php
			$q="select * from technician";
			$qr=mysql_query($q);
			while($rs=mysql_fetch_array($qr)){
			?>
             <option value="<?=$rs['technicianID']?>"><?=$rs['technicianNAME']?></option>
            <?php } ?>
 </select>
<input name="btnCreate" type="button" value="+" onClick="JavaScript:fncCreateElement();">
<input name="btnDelete" type="button" value="-" onClick="JavaScript:fncDeleteElement();"><br>
<span id="mySpan"></span>
<input id="hdnLine" name="hdnLine" type="hidden" value="1">
<input name="btnSubmit" type="submit" value="Submit">
</form>