function NewWindow(mypage)
{
	var h = screen.height * .75;
	var w = screen.width * .75;
	
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=yes,resizable'
	win = window.open(mypage, 'PDF', winprops)
	if (parseInt(navigator.appVersion) >= 4)
	{
		win.window.focus();
	}
}