var infowin=null;
function showInfo(url) {
 if (infowin && !infowin.closed) {infowin.close();}
 infowin=window.open(url,'infoWindow','status=0,toolbar=0,location=0,menubar=0,directories=0,resizable=1,scrollbars=1,height=700,width=720');
 return false;
 };