function setCookie(c_name,value,expiredays,path)
{
    var exdate = new Date();
    exdate.setDate( exdate.getDate() + expiredays );
    document.cookie = c_name + "=" + escape(value) 
                        + ( ( path ) ? ";path=" + path : "/")
                        + ((expiredays==null) ? "" : ";expires=" + exdate.toGMTString());
    //alert('cookie set to ' + value);   
}

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 "";
}

function checkCookie()
{
    language = getCookie('currentLang');
    
    if (language != null && language != "")
    {
        return language;
    }
    else
    {
        return null;
    }
}