function openWindow(url,win,prop) {
    if(!prop) {
        prop = 'width=800,height=600,toolbar=yes,menubar=yes,scrollbars=yes,resizable=yes,location=yes,status=yes';
    }
    if(window.opener) {
        window.opener.open(url,win,prop);
    }
    else {
        window.open(url,win,prop);
    }
}