function NewWindow(mypage, myname, w, h, wchange, hchange, scroll) {
var winl = ((screen.width - w) / 2) - wchange;
var wint = ((screen.height - h) / 2) - hchange;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',menubar=yes,status=yes,location=no,resizable=yes'
win = window.open(mypage, myname, winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}