<!-- When will you run out of Gmail storage? -->
<!-- created by Ionut Alex. Chitu, http://googlesystem.blogspot.com -->

<html>
<head>

<title>When will you run out of Gmail storage?</title>

<meta name="robots" content="noindex,nofollow" />

<script type="text/javascript">

var g_rate=0, g_counter;

var CP = [
   [ 1192176000000, 2912 ],
   [ 1193122800000, 4321 ],
   [ 1199433600000, 6283 ],
   [ 1224486000000, 7254 ],
   [ 2144908800000, 10996 ],   
   [ 2147328000000, 43008 ],
   [ 46893711600000, Number.MAX_VALUE ]
  ];

 
function format(num) { 
  var PAD = '.000000';
  var str = new String(num); 
  var dot = str.indexOf('.'); 
  if (dot < 0)
     return str + PAD; 
  if (PAD.length > (str.length - dot)) 
     return str + PAD.substring(str.length - dot); 
  return str.substring(0, dot + PAD.length); 
} 

function getQuota() { // finds the quota and displays it every 2 mins
  var now = (new Date()).getTime(); 
  var i;
  for (i = 0; i < CP.length; i++) {
    g_counter=i;
    if (now < CP[i][0]) break;
  }
  if (i == 0)
    setTimeout(getQuota, 1000);
  else if (i == CP.length)
    f.g_now.value = CP[i - 1][1];
  else {
    var ts = CP[i - 1][0];
    var bs = CP[i - 1][1];
    g_rate=(CP[i][1]-bs)/(CP[i][0]-ts);
    f.g_now.value = format(((now-ts) * g_rate) + bs); 
    setTimeout(getQuota, 1000);
  } 
} 

function isValidDate(dateStr) {
	var datePat = /^(\d{1,2})(\/)(\d{1,2})\2(\d{4})$/;
	var matchArray = dateStr.match(datePat); // is the format ok?
	if (matchArray == null) return false;
	month = matchArray[1]; // parse date into variables
	day = matchArray[3];
	year = matchArray[4];
	if (month < 1 || month > 12 || day < 1 || day > 31 || 
	   ((month==4 || month==6 || month==9 || month==11) && day==31)  ) 
	   return false;
	if (month == 2) { // check for february 29th
	  var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
	  if (day>29 || (day==29 && !isleap)) return false;
	}
	return true;  // date is valid
}

function leadZero(n) {
  if (n<10) return "0"+n;
  return ""+n;
}

function disp(s, s2, s3) { // s2=label pt storage, s=the answer (the date or error), s3=date value
  document.getElementById("space").innerHTML=s2;
  f.g_date.value=s;
  return s3;
}

function compute() {  
  var g_now=parseFloat(f.g_now.value);  
  var y_now=parseFloat(f.y_now.value);
  if ( (isNaN(y_now)) || (y_now<0) || (y_now>=g_now)) 
    return disp("Invalid storage.", "", "");     
  f.y_now.value=y_now;
    
  if (!(isValidDate(f.y_date.value)))
    return disp("Invalid date.", "", "");
  
  var y_date=new Date(f.y_date.value);
  if (y_date < new Date('1/1/2004'))
    return disp("Gmail wasn't released at that time.", "", "");
 
  var today=(new Date()).getTime();   
  var dist=today-y_date.getTime();
   
  if (dist<=0) 
    return disp("Date from the future.", "", "");
    
  var y_rate=y_now/dist;

  var i;  
  for (i=g_counter; i < CP.length; i++) {
    g_rate=(CP[i][1]-CP[i-1][1])/(CP[i][0]-CP[i-1][0]);
    //alert(i+": g="+g_rate*1000+" y="+y_rate*1000);
    var lim=(i==g_counter)?today:CP[i-1][0];
    var n=Math.ceil( (g_now-y_now)/(y_rate-g_rate) );  
    if (n>0) {       
      var odate=new Date(lim+n);
      return disp(odate.toLocaleDateString(), "No more space on ", (odate.getMonth()+1) + "/" + odate.getDate() + "/" + odate.getFullYear());
    }
    y_now=y_now+y_rate*(CP[i][0]-lim);
    g_now=g_now+g_rate*(CP[i][0]-lim);
  }
  
  return disp("Never", "No more space ", "");
}

function showCalendar(s) {
  document.getElementById("calendar").style.visibility="hidden";
  if (!(isValidDate(s))) return;
  var odate=new Date(s);
  var diff=odate.getTime()-2*24*60*60*1000;
  odate=new Date(diff);
  var s=odate.getFullYear() + "" + leadZero(odate.getMonth()+1) + "" + leadZero(odate.getDate());
  document.getElementById("calendarlink").href="http://www.google.com/calendar/event?action=TEMPLATE&text=You'll%20run%20out%20of%20Gmail%20storage%20space%20tomorrow&dates="+s+"T290000Z/"+s+"T295000Z&details=&location=Gmail.com&trp=false&sprop=&sprop=name:";
  document.getElementById("calendar").style.visibility="visible";
}

function run() {
  showCalendar(compute());
}

</script>

<style type="text/css">
.entry { padding-right:10px; }
.bold { font-weight:bold; } 
#calendar { visibility:hidden; }
</style>

</head>

<body onload="getQuota();">

       <form name="f" id="f" action="#" onsubmit="run(); return false;">

       <table>
        <tr>
        <td class="entry">Storage used (MB) </td>
        <td><input name="y_now" size="12" value="" autocomplete="off" /></td>
        </tr>
        <tr>
        <td class="entry">You use Gmail since </td>
        <td><input name="y_date" size="12" value="" autocomplete="off" /></td>
        </tr>
        <tr> 
        <td class="entry">Gmail storage now (MB) </td>
        <td><input name="g_now" size="12" value="3190" readonly="yes" /></td>
        </tr>        
        <tr>
        <td class="bold entry" id="space">No more space on </td><td><input name="g_date" size="30" readonly="yes" /></td>
        </tr>
        <tr>
        <td>&nbsp;</td>
        <td class="entry"><input type="submit" name="send" value="Compute" style="margin-top:10px; margin-bottom:10px; width:110px;" /></td>
        </tr>
        <tr>        
        <td>&nbsp;</td>
        <td class="entry">        
        <div id="calendar">
        <a href="#" target="_top" id="calendarlink"><img src="http://www.google.com/calendar/images/ext/gc_button2.gif" border="0" height="36" width="114" alt="Add to your calendar" /></a>
        </div>
        </td>
        </tr>        
        </table>

       </form>

               
</body>
</html>