var lastm = '';
function nextPic(id,sid) {
   if(lastm != '') {
      document.getElementById('p'+lastm).style.border='2px solid #ffffff';
   }
   document.getElementById('p'+id).style.border='2px solid #990000';
   lastm = id;
   var q =id+'_'+sid;
   waiting='Cargando, espere...';
   sndReq('/bin/p',q,'imagex');
   waiting='';
   return false;
}