false positives on web page tests

[zabbix_admin12]

I am try to setup a test for web pages that stops false positives by testing multiple times on zabbix 1.1.6

I have the following for a single test but it creates a false positive a couple times a day.
{foo.foo_domain.com:web.page.regexp[10.47.100.60,/page,80,Location,8].str(Location)}=0

From my reading adding .min(#3) should require 3 tests before running the action but is not accepted as a valid trigger expression.

IE
{foo.foo_domain.com:web.page.regexp[10.47.100.60,/page,80,Location,8].str(Location).min(#3)}=0

Is my syntax incorrect or is just not supported with web.page.regexp.

Is there another solution or do I have to go back to zabbix_sender and use a perl script?

Thanks a lot

[Calimero]

Maybe you could use the "change()" function.

1st condition: .str(what I'im looking for)
2nd condition: .change(0) = 0

So that both the current value and the previous one are the same:

{your_host:web.page.regexp[localhost,/path.php,80,KO].str(KO)}=1&{your_host:web.page.regexp[localhost,/path.php,80,KO].change(0)}=0

There's also the count() function that could be useful.

Hope it helps.