function openbookpaywindow() {
newWindow = window.open('http://www.aristoteliansociety.org.uk/payment/bookseries/bsredirect.html','newWin','toolbar=no,resizable=yes,status=yes,location=no,scrollbars=yes,width=620, height=420')
}
function opensubspaywindow() {
newWindow = window.open('http://www.aristoteliansociety.org.uk/payment/subs/subredirect.html','newWin','toolbar=no,resizable=yes,status=yes,location=no,scrollbars=yes,width=620, height=420')
}
function opensuppaywindow() {
newWindow = window.open('http://www.aristoteliansociety.org.uk/payment/supp/supredirect.html','newWin','toolbar=no,resizable=yes,status=yes,location=no,scrollbars=yes,width=620, height=420')
}