รบกวนผู้รู้ขอถามเรื่องการใช้ mysql select ขึ้นมาโชวในหน้าเดียวกับปุ่มหน่อยครับ

<form action="seard_reg.php" name="frmMain" method="post" target="iframe_target">
	<iframe id="iframe_target" name="iframe_target" src="#" style="width:0;height:0;border:0px solid #fff;"></iframe>

	<script language="JavaScript">
		function showResult(result)
		{
			if(result==0)
			{
				<?php
				include('connect.php');
				$sql ='SELECT * FROM member ';
				$query = mysql_query($sql);
    			$result = mysql_fetch_array($query);
    			$num = mysql_num_rows($query);
				?>
				/*successfully!*/
				document.getElementById("ps_ur").value="<?php $result['p_pass'] ?>";
				
			}
			else
			{
				/*Error!!!*/
				document.getElementById("ps_ur").value = "ข้อมูลไม่ถูกต้อง";
			}
		}
	</script>
      
      
        
<div  class="dropdown" >
  <button id="mybtn" class="dropbtn">ลืมรหัสผ่าน</button>
  <div id="myDropdown" class="dropdown-content">
    <div class="ui"><input id="i_ur" name="i_ur" class="wt" type="text" placeholder="ชื่อผู้ใช้งาน"></div>
    <div class="ui"><input name="n_ur" class="wt"type="text" placeholder="ชื่อจริง"></div>
    <div class="ui"><input name="sr_ur" class="wt" type="text" placeholder="นามสกุลจริง"></div>
    <div class="ui"><input name="bd_ur" class="dt" type="date" placeholder="วัน/เดือน/ปีเกิด"></div>
    <div class="i"><input id="ps_ur" class="t" type="text" value="" disabled> </div>
    <div class="si"><input  class="st" type="submit" value="ลืมรหัสผ่าน"></div>
  </div>
</div>
</form>

<?php
	if(isset($_POST['i_ur'])!='' ){
	include('connect.php');
	$sql ='SELECT * FROM member WHERE u_ser = "'.$_POST['i_ur'].'"';
	$query = mysql_query($sql);
	$result = mysql_fetch_array($query);
    $num = mysql_num_rows($query);
	
	 if($num!=0){
		 echo "<script>window.top.showResult('0');</script>";
	 }else{
		 echo "<script>window.top.showResult('1');</script>";
	 }
	}
?>