function showProduct(id){
  var width=600;
  var height=500;
  var features="height="+height+",width="+width+",status=no,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=no";
  var popWin = window.open('product.jsf?id='+id,'product',features);
  popWin.focus(); 
  return popWin;
}