php-pagebuilder Code

<?php
session_start();
$user_ID=$_SESSION[user_ID];
if (!$user_ID || $user_ID=='0')
{
  header('location: index.php');
  die('Login failed');
}
require("util.php");
$sql = new MySQL_class;
$sql->Create("generator");
$esql = new MySQL_class;
$esql->Create("generator");
if ($_GET[part]) { $_SESSION[var_part] = $_GET[part]; }
$screen=$_SESSION[var_screen];
$DatabaseID=$_SESSION[var_DatabaseID];
$part=$_SESSION[var_part];
?>
<?php
$sql = new MySQL_class;
$sql->Create("generator");
$type=quote($_POST['type']);
$table=quote($_POST['table']);
$link=quote($_POST['link']);
$title=quote($_POST['title']);
$code=quote($_POST['code']);
$order=quote($_POST['order']);
if ($order<>'') {
	$sql->Query("UPDATE `part` SET `order`=`order`+1 WHERE `order`>=$order AND `part`.`screen`='$screen'");
} else {
	$sql->QueryItem("SELECT `order`+1 as next FROM `part` WHERE `part`.`screen`='$screen' ORDER BY `order` DESC LIMIT 1");
	if (!$sql->data[next]) {
		$order=1;
	} else {
		$order=$sql->data[next];
	}
}
$sql->Insert("INSERT INTO `part`
	(
                     `screen`,
                     `type`,
                     `table`,
                     `link`,
                     `title`,
                     `code`,
                     `order`
	 )
	 VALUES (
                     '$screen',
                     $type,
                     $table,
                     $link,
                     $title,
                     $code,
                     $order
	 )");
$affected_rows = $sql->a_rows;
echo "<P><FONT FACE=\"Verdana, sans-serif\"><FONT SIZE=1 STYLE=\"font-size: 8pt\">";
echo "Er is/zijn $affected_rows records toegevoegd<BR>";
echo "$type<BR>";
echo "$table<BR>";
echo "$link<BR>";
echo "$title<BR>";
echo "$code<BR>";
echo "</P>";
if ($affected_rows>0) {
	echo "<script>window.opener.location.reload(true)</script>";
	echo "<script>window.close(self)</script>";
}
$_SESSION['last_62']=$order;
;
?>
<INPUT TYPE=BUTTON VALUE="Sluiten" onClick="window.opener.location.reload(true);self.close()">