You can one try only, on same day.
<HTML>
<HEAD>
<SCRIPT TYPE="text/javascript">
<!--
var year, month, date, rNumber, i, r;
var times = 50;
img = new Image;

function display_image(){
  c = document.cookie;
  if(navigator.appVersion.charAt(0)>=3){
  if(c == ""){
  Randoms(times);
  getDays();
  document.cookie = "card="+rNumber+";expires="+Xday;
  }
  else{ rNumber = getCookie("card"); }

  if(rNumber < 5){ i = 1; }
    else if (rNumber < 20){ i = 2; }
    else if (rNumber < 40){ i = 3; }
    else if (rNumber < 48){ i = 4; }
    else if (rNumber < 51){ i = 5; }
    img.src = "image/huda"+i+".gif"
  }
  document.Img.src = img.src;
}

function getCookie(key){
  tmp = document.cookie+";";
  tmp1 = tmp.indexOf(key,0);
  if(tmp1 != -1){
    tmp = tmp.substring(tmp1,tmp.length);
    start = tmp.indexOf("=",0) + 1;
    end = tmp.indexOf(";",start);

  return(unescape(tmp.substring(start,end)));
  }
  return("");
}

function getDays(){
  var day = new Date();
  if(day.getYear() >= 2000){ year = day.getYear(); }
  else{ year = day.getYear() + 1900; }
  month = day.getMonth() + 1;
  date = day.getDate();

  date++;
  if(month == 12 && date > 31){ date = 1; month = 1; year++; }
  else if (month == 2 && year % 4 == 0){
    if(date > 29){ date = 1; month = 3; } }
  else if (month == 2 && date > 28){ date = 1; month = 3; }
  else if (month == 4 || month == 6 || month == 9 || month == 11){
    if(date > 30){ date = 1; month++; } }
  else if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10){
    if(date > 31){ date = 1; month++; } }

  month--;
  Xday = new Date(year,month,date);
  Xday.setTime(Xday.getTime());
}

function Randoms(r){
  iValue = Math.random() * r;
  rNumber = Math.ceil(iValue);
}
//-->
</SCRIPT>
</HEAD>
<BODY>
<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0">
<TR>
<TD COLSPAN="5" ALIGN="CENTER"> <IMG SRC="image/huda0.gif" WIDTH="32" HEIGHT="60" NAME="Img" VSPACE="20" ALT="card"></TD>
</TR>
<TR ALIGN="CENTER">
<TD COLSPAN="5">
<INPUT TYPE="BUTTON" NAME="button" VALUE="FORTUNE CARD" onClick="display_image()">
</TD>
</TR>
</TABLE> </BODY> </HTML>

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