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Title : Store, retrieve and delete cookies using JavaScript.
Categories : Java Script, Cookies, Beginner Guides, Cookies Click here to Update Your Picture
Bobin R
Date : Jan 26th 2007
Grade : 4 of 5 (graded 7 times)
Viewed : 38220
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<!doctype html public "-//w3c//dtd html 4.01 transitional//en">
<html>
<head>
<title>Cookie Functions</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<script type="text/javascript">
<!--
/*
Functions for storing, retrieving and deleting cookies
*/

function getCookie(name) {
    var sPos = document.cookie.indexOf(name + "=");
    var len = sPos + name.length + 1;
    if((!sPos) && (name != document.cookie.substring(0, name.length))){
        return null;
    }
    if(sPos == -1){
        return null;
    }
    var ePos = document.cookie.indexOf(';', len);
    if(ePos == -1) ePos = document.cookie.length;
    return unescape(document.cookie.substring(len, ePos));
}

function setCookie(name, value, expires, path, domain, secure){
    var today = new Date();
    if(expires){
        expires = expires * 1000 * 3600 * 24;
    }
    document.cookie = name+'='+escape(value) +
        ((expires) ? ';expires=' + new Date(today.getTime() + expires).toGMTString() : '') +
        ((path) ? ';path=' + path : '') +
        ((domain) ? ';domain=' + domain : '') +
        ((secure) ? ';secure' : '');
}

function deleteCookie(name, path, domain){
    if(getCookie(name)){
        setCookie(name, '', -30, path, domain);
    }
}
function testFunction(){
    var c = parseInt(getCookie('Value'));
    if(!c){
        alert('No initial Value\nSetting New Cookie\nValue : 0');
        setCookie('Value', 1);
    }else{
        alert('Stored Cookie\nValue : ' + c);
        alert('Setting New Cookie\nValue : ' + (c + 1));
        setCookie('Value', (c + 1));
    }
    //deleteCookie('Value');
}
//-->
</script>
</head>

<body onload="testFunction()">

</body>
</html>



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User Comments
 Ken Douglass wrote :1766
thanks!