function pictureSetMainPic()
 {
     $pid = isset($_GET['pid']) ? addslashes($_GET['pid']) : 0;
     if ($pid == 0) {
         die('No ID');
     }
     $gid = isset($_GET['gid']) ? addslashes($_GET['gid']) : '0';
     if ($gid == '0') {
         die("Please provide ID");
     }
     $gp = new Galleryphoto();
     $gp->clearMainPic($gid);
     $gp->getByID($pid);
     $gp->photo_mainpic = 1;
     $gp->load = 1;
     $gp->save();
 }