Search results

With the following code I can handle search results:

if ( (have_posts()) and (is_search()) ) {
// ...
}


Now, I want to display the total number of hits (i.e.: 23 articles found…).
If I use

while ( have_posts() ) {
the_post();
$count++;
}

I only get 10 results although there are more. I know, this is due to my admin settings (10 pages as limit).
How can I get the total of search results?

Thanks in advance,
Michael