function gal(url) {
    var w=655;
    var h=630;
    var l=(screen.width-w)/2; if (l<0) {l=0;}
    var t=(screen.height-h-130)/2; if (t<0) {t=0;}
    selimgWindow = window.open(url, '_new', 'width='+w+',height='+h+',top='+t+',left='+l+',resizable=1,status=0,toolbar=0,menubar=0,location=0,scrollbars=0,dependent');
    selimgWindow.focus()
}