function abre()
{
nw=window.open("europa.html","popup","scrollbars=yes,resizable=yes,width=400,height=400,status=no,location=no,toolbar=no");
nw.moveTo(20,20);
nw.focus();
}

if (document.layers) {

   window.onResize = reloadIt;

}

function reloadIt() {

  document.location = document.location;

}