Untitled

<html>
<head>
<script type="text/javascript" src="scripts/validation.js" >
 </script>
<link href="style.css" type="text/css" />
<title>Registration Page</title>
</head>
<body>

<?php
include ("config.php");
if(isset($_POST["submit"])){
    $username=$_POST["username"];
    $name=$_POST["name"];
    $password=$_POST["password"];
    $gender=$_POST["gender"];
    $country=$_POST["country"];
    $subject=$_POST["subject"];
    $count=count($subject);
    $sub1="";
    $sub2="";
    if($count==2)
    {
        $sub1=$subject[0];
        $sub2=$subject[1];
    }
    else if($count==1){

        $sub=$subject[0];
        if($sub == "sub1"){
            $sub1=$subject[0];
        }else{
            $sub2=$subject[0];
        }

    }
}
$flag=0;
$ins_login="insert into login values('','$username','$password')";
$res=mysql_query($ins_login);
$login_id='0';
if($res=='1')
{
    $sel_id="select *from login where username='$username'";
    $res_selectid=mysql_query($sel_id);
    $array_selectid=mysql_fetch_row($res_selectid);
    $login_id=$array_selectid[0];
}
else{
$flag=9;
echo"<b>Error in Login Details. User Already exist,Please reset password</b><br/>";
}
if($flag!=9)
{
    $ins_userdetails="insert into userdetails values('','$name','$login_id','$gender','$country','$subject')";
$res=mysql_query($ins_userdetails );
if($res=='1')
{
echo"<b>registration completed successfully</b><br/>";
}
else {
echo"<b>registration completed unsuccessfully</b><br/>";
}
}
mysql_close();
?>