$slct = $_POST['txtcheck'];
$total_slct = sizeof($slct);


for ($i=0; $i < $total_slct; $i++){
$str2 .= $slct[$i].",";
}


$str1 = mysql_result(q("SELECT favorites from __users where user_id = '".s(user_id)."'"),0);
$str2 =  substr($str2,0,-1);

$z = explode(",",$str1);
//$z[0];

function fav_replace($str,$val,$mode) {
if($mode==1) { $r = str_replace($str,$val,$r); }
else { $r = $str; }

} 
$g1 = "";
while (1==1){


}