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