อัพเว็บขึ้น host จริงแล้วขึ้น error Warning: mysql_query() expects parameter 2 to be resource, string given in

<?
$host="localhost";
$username="emscomputer";
$password="12345";
$db="emscomputer_db";

mysql_connect( $host,$username,$password) or die ("µÔ´µè͡Ѻ°Ò¹¢éÍÁÙÅ Mysql äÁè䴁é");
mysql_query("set NAMES tis620");
mysql_select_db($db) or die("àÅ×Í¡°Ò¹¢éÍÁÙÅäÁè䴁é"); 

?> 

<?php
$connect=mysql_connect("localhost","emscomputer","12345");
mysql_select_db("emscomputer_db",$connect)or die("can not connect database");

mysql_query("set NAMES tis620");
?>

<?
// Êèǹ¨Ñ´¡Òðҹ¢éÍÁÙÅ
$host="localhost";
$username = "emscomputer";
$password = "12345";
$db="emscomputer_db";
$connect=mysql_connect($host,$username,$password) or die ("Cannot Connect to MySQL");
mysql_select_db($db) or die ("Cannot connect to Database");
mysql_query("set NAMES tis620");

// ¨Ñ´¡ÒÃÊèǹ Head Title áÅÐ Buttion Text àÇçºËÅÑ¡
$headtxt_web = " EMS Computer Songkhla ";
$buttomtxt_web = "<font size=3 color=#FFFFFF>Copyrights (c) 2015. Ems Computer . All rights reserved. <br>Email : </font>
<a href=mailto:[email protected]><font size=3 color=#FFFFFF>[email protected]</font></a>"; 
$tel_web = "<font size=3 color=#FFFFFF>Tel. (074)-892045, 087-2994590<br></font>"; 

// ¨Ñ´¡ÒÃÊèǹ Head Title áÅÐ Buttion Text ˹éÒ Admin
$headtxt = ":: EMS Computer Songkhla ::";
$buttomtxt = "<font size=2 color=#666666>Copyrights (c) 2011. Pungpond Telecom . All rights reserved. <br>Email : </font><a href=mailto:[email protected]><font size=2 color=#003366>[email protected]</font></a>";

?>

$sql="select * from member where usermem='$usermem'";
						  $mysql_query=mysql_query($db,$sql);
						  $result=mysql_fetch_array($mysql_query);
						  $idxx=$result[id];
						  $usename=$result[name];
						  $user_mem=$result[usermem];
						  $pass_mem=$result[passmem];
$showmember = "
<div align=center><font size=2 color=#ffffff><img src=images/user.gif width=25 height=15>ยินดีต้อนรับ : <font color=#FFFF00>$usename</font>
<br><font size=2 color=#ffffff>[</font> <a href=CheckMyOrder.php><font size=2 color=#ffffff>ประวัติสั่งซื้อสินค้า</font></a> <font size=2 color=#ffffff>] 
<br><font size=2 color=#ffffff>[</font> <a href=ChangePass.php><font size=2 color=#ffffff>เปลี่ยนรหัสผ่าน</font></a> <font size=2 color=#ffffff>] 
<br><font size=2 color=#ffffff>[</font> <a href=Profiles.php><font size=2 color=#ffffff>ข้อมูลส่วนตัว</font></a> <font size=2 color=#ffffff>] 
<br>[</font><a href=Logout.php><font size=2 color=#ffffff>ออกจากระบบ</font></a><font size=2 color=#ffffff>]</font> 
</div>
";
$myorder = "<a href=CheckMyOrder.php><img src=images/myorder.gif border=0><a>";
}

$sqlcc="update counter set count = count+1 where id=1";
$db_query=mysql_query($db,$sqlcc);
?>