random order

//Retrieve consistent random set of posts with pagination
function mam_posts_query($query) {
    global $mam_posts_query;
    if ($mam_posts_query && strpos($query, 'ORDER BY RAND()') !== false) {
       $query = str_replace('ORDER BY RAND()',$mam_posts_query,$query);
    }
    return $query;
}
add_filter('query','mam_posts_query');
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$seed = gregoriantojd(date('h'),date('m'),date('d'),date('Y'));
global $mam_posts_query;
$mam_posts_query = " ORDER BY rand($seed) "; // Turn on filter
$args = array(    'caller_get_posts' => 1,  // Stickies will be repeated if this is not set
    'orderby' => 'rand',      // This MUST be in the query - the filter checks for it
    'paged' => $paged );
query_posts($args);
$mam_posts_query = ''; // Turn off filter

//query_posts($query_string . '&orderby=rand');