Hello, I have a big problem on a if function ?? sorry about bad english

if user IP is not a same like in $adminip field and paid=="0", script should load popup, but if IP is a same like in $adminip and paid=="0" script should not load this popup.

if paid=="1" or something else Nothing should happen

PHP Code:
if ($paid=="0") {
$sql "select html from $tableads where format='popup'";
$result mysql_query($sql) or die("Failed: $sql");
$resrow mysql_fetch_row($result);
$popup $resrow[0];