var uuid = "4843ad52faa84dcd3d4be8fef95bd43e"; function updateReturnUrl(frm,course) { //var time = frm['os0'].options[frm.os0.selectedIndex].value; var ret = "http://www.medicallyminded.co.uk/book/confirm?bk="+course+"&uuid="+uuid; var can = "http://www.medicallyminded.co.uk/book/cancel?bk="+course+"&uuid="+uuid; frm['return'].value = ret; frm['cancel_return'].value = can; return true; }