That's a new one... never thought about a max amount, but with the two key words free-fun would get it going.... this is basically the opposite of the to low bid, but without an easy admin setting.
in includes\modules\pages\product_auction_info\header_php.php add the lines in red in between the black code sections about line 125.
Code:
if ($auction_bid > 0 ) {
if ($auction_bid < ($auction_bid_minimum_increase + $auction_current_bid)) {
$error = true;
$messageStack->add('place_bid', ENTRY_BID_TOO_LOW, 'error');
}
if ($auction_bid >= ($auction_bid_minimum_increase + $auction_current_bid) + 200) {
$error = true;
$messageStack->add('place_bid', 'To High - Try Again!', 'error');
}
if ($error == false) {
This works by checking if the bid is 200 over the current bid plus the minimum increase.. change the 200 to something higher or lower for what you want....
The edited page if you wish to just replace it...
Attachment 8740
I'll have to add this to the next update...