สร้างปุ่มกด + แล้วจะเพิ่ม dropdown อีกอัน แต่ option มันไม่ออก ต้องแก้ไขยังไง

<script language="javascript">
	function fncCreateElement(){
		var mySpan = document.getElementById('mySpan');
 
		var myElement3 = document.createElement('select');
		myElement3.setAttribute('name',"toPlace");
		myElement3.setAttribute('id',"toPlace");
		mySpan.appendChild(myElement3); 
		fncCreateSelectOption(myElement3)
		 
		var myElement2 = document.createElement('<br>');
		mySpan.appendChild(myElement2);
	}
</script>

<form  name="road" method="post" action=""   >
    
From:  
		  	<select name="namePlace" id="namePlace"  onchange="return check();" >
			<option value=""><-- Please Select --></option>
			<?
			$strSQL = "SELECT Travel_name FROM travel_detail UNION ALL SELECT food_name FROM food UNION ALL SELECT hotel_name FROM hotel";
			$objQuery = mysql_query($strSQL);
			while($objResuut = mysql_fetch_array($objQuery))
			{
			?>
			<option value="<? echo $objResuut["Travel_name"]; ?>"><? echo $objResuut["Travel_name"];?></option>
			<?	}
				?>
		  </select>
     To:  
		  	<select name="toPlace" id="toPlace"  onchange="return check();" >
			<option value="99"><-- Please Select --></option>
			<?
			$strSQL1 = "SELECT Travel_name FROM travel_detail UNION ALL SELECT food_name FROM food UNION ALL SELECT hotel_name FROM hotel";
			$objQuery1 = mysql_query($strSQL1);
			while($objResuut1 = mysql_fetch_array($objQuery1))
			{
			?>
			<option value="<? echo $objResuut1["Travel_name"];?>"><? echo $objResuut1["Travel_name"];?></option>
			<?	}
				?>
		  </select>
          <span id="mySpan"></span>
<input name="btnButton" id="btnButton" type="button" value="+" onClick="JavaScript:fncCreateElement();">
<input type="submit" name="SearchPlace" id="SearchPlace" value="Search"  onclick="return check();" />
<input type="button" name="iClear" id="iClear" value="Clear" />
	</form>