PHP โค้ด DropDownList อยากให้มันเซ็ตค่าเริ่มต้นจากฐานข้อมูลคะ

$row['province_id']=10; //sample province id from select register data

echo "<select name='province_id'>";
while($row_province = mysql_fetch_array($sqlGetProvince)){
 if($row_province['province_id']==$row['province_id']){
   echo "<option value='".$row_province['province_id']."' selected='selected'>".$row_province['province_name']."</option>";
 }else{
    echo "<option value='".$row_province['province']."' selected='selected'>".$row_province['province_name']."</option>";
 }
}
echo "</select>";

<script language = "JavaScript">
		
		//**** List Amphur (Start) ***//
		function ListAmphur(SelectValue)
		{
			frmEdit.ddlAmphur.length = 1

			//*** Insert null Default Value ***//
			var myOption = new Option('','')  
			frmEdit.ddlAmphur.options[frmEdit.ddlAmphur.length]= myOption
			
			<?php
			$intRows = 0;
			$strSQL = "SELECT * FROM amphur ORDER BY amphurID ASC ";
			$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
			$intRows = 0;
			while($objResult = mysql_fetch_array($objQuery))
			{
			$intRows++;
			?>
				x = <?php echo $intRows;?>;
				mySubList = new Array();
				
				strGroup = <?php echo $objResult["provinceID"];?>;
				strValue = "<?php echo $objResult["amphurID"];?>";
				strItem = "<?php echo $objResult["amphurName"];?>";
				mySubList[x,0] = strItem;
				mySubList[x,1] = strGroup;
				mySubList[x,2] = strValue;
							
				if (mySubList[x,1] == SelectValue){
					var myOption = new Option(mySubList[x,0], mySubList[x,2])  
					frmEdit.ddlAmphur.options[frmEdit.ddlAmphur.length]= myOption					
				}
			<?php
			}
			?>																	
		}
		//**** List Amphur (End) ***//

            </script>

           อำเภอ
            <select id="ddlAmphur" name="ddlAmphur" style="width:100px" value="<?php echo $_GET["ddlAmphur"];?>">
              <option value="">-ทุกอำเภอ-</option>
            </select>