function popUp(URL, name, w, h, scroll) { // V 1.0
	var winleft = (screen.width - w) / 2;
	var winUp = (screen.height - h) / 2;
	winProp = 'width='+w+',height='+h+',left='+winleft+',top='+winUp+',scrollbars='+scroll+''
	Win = window.open(URL, name, winProp)
	if (parseInt(navigator.appVersion) >= 4) { Win.window.focus(); }
}