function popUp(url, name, popW, popH, scroll) {
	var winLeft = ((screen.width - popW) / 2) - 15;
	var winTop = (screen.height - popH) / 2;
	winProps = 'width=' + popW + ',height=' + popH + ',left=' + winLeft + ',top=' + winTop + ',scrollbars=' + scroll + ',resizable' + ',status=no';	
	win = window.open(url, name, winProps)
	if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}