function popupFutureAvail(pid) {
	NewWindow("popup_avail.php?productid="+pid, "showavail", 600, 550, "yes");
}

function NewWindow(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'

	win = window.open(mypage, myname, winprops)

	if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}