function getCookie(name,defValue)
{
    var cname=name + "=";
    var dc=""+document.cookie;
    if(dc.length>0)
    {
        var begin=dc.indexOf(cname);
        if(begin!=-1)
        {
            begin+=cname.length;
            var end=dc.indexOf(";",begin);
            if(end==-1)
            {
                end=dc.length;
            }
            return dc.substring(begin,end);
        }
    }
    return defValue;
}