[NeverMind]

it doesn't work because you didn't send the query to database ???
you need to use mysql_query(); to send your query ..
in your post you only defined the query but didn't send it ..
it should be something like this :

PHP Code:

if ($Submit == "count03") 

{

$sql = "UPDATE DB3 SET VAR1 = VAR1+1 Where User = 'User01";

$update=mysql_query($sql)or Die(mysql_error());

$check=mysql_affetced_rows();



if ( $check == 1 ) {

echo'Database was updated succesfully ..';

} else {

echo'database wasn\'t updated !! please try again later ..';

} else { 

try it and see