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I get asked constantly for little snippets of code. Instead of answering everyone one at a time I am starting a small PDF library at Stmadeveloper.com.

REDIRECTION USING JAVASCRIPT!

Download sample files at Stmadeveloper Code Samples

I get asked constantly for little snippets of code. Instead of answering everyone one at a time I am starting a small PDF library at Stmadeveloper.com.

1. Create cookieslib.js file with the following content:

function createCookie(name,value,days)
{
        if (days)
        {
                var date = new Date();
                date.setTime(date.getTime()+(days*24*60*60*1000));
                var expires = "; expires="+date.toGMTString();
        }
        else var expires = "";
        document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
        var nameEQ = name + "=";
        var ca = document.cookie.split(';');
        for(var i=0;i < ca.length;i++)
        {
                var c = ca[i];
                while (c.charAt(0)==' ') c = c.substring(1,c.length);
                if (c.indexOf(nameEQ) == 0) return
c.substring(nameEQ.length,c.length);
        }
        return null;
}

function eraseCookie(name)
{
        createCookie(name,"",-1);
}

2. Below is the code of the first page (you should take into account
JS code only):

<html>
<head>

<script type="text/javascript" language="javascript" src="cookielib.js">
</script>
<script type="text/javascript" language="javascript">
   // set cookie
    createCookie("cookiename", "test_value", 99999);
</script>
</head>
<body>
        <a href="2.html">open 2.html</a>
</body>
</html>

3. Sample of a page which checks for cookie availability and redirects
an user to "url" if the cookie is set:

<html>
<head>
<script type="text/javascript" language="javascript" src="cookielib.js">
</script>
<script type="text/javascript" language="javascript">
        // you may use any URL, just replace http://google.com with yours
        var url = "http://google.com";
        if (readCookie('cookiename') != null) {
                alert("you have cookie with cookiename; you are being
redirected to " + url);
                document.location = url;
        }
</script>
</head>
<body>
        if you see this code, it means that your browser does not have
cookie "cookiename".
</body>
</html>

In order to remove the popup window prior to redirection, just replace

alert("you have cookie with cookiename; you are being redirected to " + url);

with

// alert("you have cookie with cookiename; you are being redirected to " + url);