function showpic(id) {
  picid=id;
  url1='viewpic.php?id=';
  winname='bigpicture';
  urlfinal=url1 + picid;
  featrs='height=525,width=450,toolbars=no,scrollbars=no,resizable=no,location=no,directories=no,status=no,left=150,top=150,titlebar=no';
  window.open(urlfinal, winname, featrs);
  return;
}