JS Cookie getvalue

**abch624** · 04-14-2009 05:17 PM

I have a few javascript functions bellow

Code:

<script type="text/javascript">
function setCookie(c_name,value,expiredays)
{
   var exdate=new Date();
   exdate.setDate(exdate.getDate()+expiredays);
   document.cookie=c_name+ "=" +escape(value)+
   ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function getCookie(c_name)
{
   if (document.cookie.length>0)
     {
     c_start=document.cookie.indexOf(c_name + "=");
     if (c_start!=-1)
      {
      c_start=c_start + c_name.length+1;
      c_end=document.cookie.indexOf(";",c_start);
      if (c_end==-1) c_end=document.cookie.length;
      return unescape(document.cookie.substring(c_start,c_end));
      }
     }
   return "";
}
</script>
<script type="text/javascript">
   function cookieWhatWeSay(name)
   {
      cookie=getCookie(name);
      if (cookie!=null)
      {
         var value = cookie.GetCookieValue();
         if (value == "inline")
         {
            document.getElementById('whatwesay1').style.display = 'inline';
            document.getElementById('whatwesay2').style.display = 'none';
            setCookie('whatwesay','inline',365);
         }
         else
         {
            document.getElementById('whatwesay1').style.display = 'none';
            document.getElementById('whatwesay2').style.display = 'inline';
            setCookie('whatwesay','none',365);
         }
      }
   }
</script>

</head>
<body onLoad="cookieWhatWeSay('whatwesay')">

The setCookie function works perfectly but the one I am interesetd in is cookieWhatWeSay(name) this works partially

I need to know how I can get the value from the cookie. Basically the cookie can have two values (i.e. inline or none) How do I get this value from the cookie and then use the if statements in the cookieWhatWeSay(name) function.

Hope you understand what I say

Please help.

Cheers - Zahid

**ZeroKilled** · 04-14-2009 06:15 PM

first: the way you get the cookie is wrong.

Code:

         var value = cookie.GetCookieValue();

here cookie is a string that already contain the value of the retrieved cookie. unless GetCookieValue is a prototyped function for String, then is ok.

second: the following condition make no sense. when the cookie doesn't exist getCookie function return an empty string. which in turn, an empty string IS NEVER the same as null. in this case, the evaluation is always true.

Code:

      if (cookie!=null)
      ...
      }

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