Page Visit Count using cookies

MAC
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In this article, I would like to demonstrate page visiting counter using cookies.

These are the steps for implementing the same

Create one aspx file in visual studio 2005/200/2010
Copy the script shown below in between script tag

<script language="JavaScript" type="text/javascript">
   function GetCookie(name) {
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen) {
   var j = i + alen;
   if (document.cookie.substring(i, j) == arg)
   return getCookieVal(j);
   i = document.cookie.indexOf(" ", i) + 1;
   if (i == 0) break;
      }
   return null;
   }
   function SetCookie(name, value) {
   var argv = SetCookie.arguments;
   var argc = SetCookie.arguments.length;
   var expires = (argc > 2) ? argv[2] : null;
   var path = (argc > 3) ? argv[3] : null;
   var domain = (argc > 4) ? argv[4] : null;
   var secure = (argc > 5) ? argv[5] : false;
   document.cookie = name + "=" + escape(value) +
   ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
   ((path == null) ? "" : ("; path=" + path)) +
   ((domain == null) ? "" : ("; domain=" + domain)) +
   ((secure == true) ? "; secure" : "");
   }
   function DeleteCookie(name) {
   var exp = new Date();
      exp.setTime(exp.getTime() - 1);
   var cval = GetCookie(name);
   document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
   }
   var expDays = 30;
   var exp = new Date();
   exp.setTime(exp.getTime() + (expDays * 24 * 60 * 60 * 1000));
   function amt() {
   var count = GetCookie('count')
   if (count == null) {
   SetCookie('count', '1')
   return 1
   }
   else {
   var newcount = parseInt(count) + 1;
   DeleteCookie('count')
   SetCookie('count', newcount, exp)
   return count
   }
   }
   function getCookieVal(offset) {
   var endstr = document.cookie.indexOf(";", offset);
   if (endstr == -1)
   endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
   }
   </script>
Paste this code in between <body> tag
<body>
   <form id="form1" runat="server">
   <script language="JavaScript">
   document.write("You've been here <b>" + amt() + "</b> times.")
   </script>
   </form>
</body>