Session handling in HTML page using JavaScript

html, javascript, session

Solution

javascript only support cookies. You can set them up to keep track of a user session but they do not support the use of sessions.

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

Source: http://www.daniweb.com/web-development/javascript-dhtml-ajax/threads/19283/how-to-save-session-values-in-javascript

Problem

Original source