function OpenBookedDates(id)
{
    url = "BookedDates.aspx?id="+id;
    var height = 470;
    var width = 820;
    var resizable=true;
    var top = (screen.availHeight - height) / 2;
    var left = (screen.availWidth - width) / 2;
    window.open(url,"","Width="+width+"px,Height="+height+"px,resizable="+((resizable)?"yes":"no")+",top="+top+"px,left="+left+"px,status=no,scrollbars=yes");
}