function popupWin(href, windowname, wd, ht) {
 x = (screen.width)?Math.floor((screen.width-wd)/2) : 100;
 y = (screen.height)?Math.floor((screen.height-ht)/2) : 100;
 wstat = 'resizable=yes,location=no,directories=no,menubar=yes,titlebar=no,toolbar=no,scrollbars=yes,status=no,width='+wd+',height='+ht+',left='+x+',top='+y;
 win = window.open(href,windowname,wstat);
 if (win && !win.closed) win.focus();
}

function popupWinNS(href, windowname, wd, ht) {
 x = (screen.width)?Math.floor((screen.width-wd)/2) : 100;
 y = (screen.height)?Math.floor((screen.height-ht)/2) : 100;
 wstat = 'resizable=no,location=no,directories=no,menubar=no,titlebar=no,toolbar=no,scrollbars=auto,status=no,width='+wd+',height='+ht+',left='+x+',top='+y;
 win = window.open(href,windowname,wstat);
 if (win && !win.closed) win.focus();
}