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