ช่วยหน่อยครับต้องการให้ Ajax ดึงค่าจากฐานข้อมูลมาแสดงบน select box ทันที

    $(document).ready(function() {
    var i = 1;
	$("#add_input").click(function(){
		if(i <= 3){
		i++;
		$("#dynamic").append('<div id="row'+i+'"><select name="txtName[]" id="List'+i+'" class="selectpicker show-tick show-menu-arrow" tabindex="-98"><option value=""></option></select></div>');
		}
	});
		$("#remove_input").click(function(){
			if(i > 0){
			$('#row'+i+'').remove();
			i--;}
			});
		$("#List").change(function(){
			$.post("Show-select.php",function(data){
				alert(data);
			});
			});
});

<div id="dynamic">
               <select name="txtName[]" id="List" class="selectpicker show-tick show-menu-arrow">
                         <option value=""></option>
                        <option value=""></option>
               </select>
</div>

mysql_select_db($database_Myconnection, $Myconnection);
		$strSQL = "SELECT DISTINCT Name FROM equipment";
		$equipmentQuery = mysql_query ($strSQL,$Myconnection) or die ("Error Query [".$strSQL."]");
		$strOption=null;
		while($equipmentResult = mysql_fetch_array($equipmentQuery))
		{
			$strOption.='<option value="'.$equipmentResult["Name"].'">'.$equipmentResult["Name"].'</option>';
			 }
		session_write_close();
		mysql_close($Myconnection);
		echo $strOption;