/**
 * set cookie
 *
 * @param string  name
 * @param string  value
 * @param integer time  - seconds
 */
function setCookie(name, value, time)
{
    if(time)
    {
        var date = new Date();
        date.setTime(date.getTime()+(time*1000));
        var expires = '; expires='+ date.toGMTString();
    }
    else var expires = '';
    document.cookie = name +'='+ value + expires +'; path=/';
}

/**
 * get cookie value
 *
 * @param string name
 */
function getCookie(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;
}

/**
 * delete cookie
 *
 * @param string name
 */
function removeCookie(name)
{
    this.setCookie(name,'',-1);
}