function setCookie(name, value)
                {
                    var expdate = new Date ("December 31, 2010");
                    document.cookie = name + "=" + escape(value) + ";expires=" + expdate.toGMTString() + ";path=/;domain=.iafrica.com";
                }

                function getCookie(name) {
                  var dc = document.cookie;
                  var prefix = name + "=";
                  var begin = dc.indexOf("; " + prefix);
                  if (begin == -1) {
                    begin = dc.indexOf(prefix);
                    if (begin != 0) return null;
                  } else
                    begin += 2;
                  var end = document.cookie.indexOf(";", begin);
                  if (end == -1)
                    end = dc.length;
                  return unescape(dc.substring(begin + prefix.length, end));
                }
                
                if ( getCookie("z") == null )
                    setCookie("z", "9957628");