function Fold(isFold)
{
        var url = "/Exhibition/AjaxServer.aspx?action=fold&isfold=" + (isFold ? "Fold" : "Unfold");
        new Ajax.Request(
            url,
            {
                method:'post',
                onCreate : function(){
                    $("Loading").innerHTML= '<img src="/22.gif">'; 
                },
                onComplete: function(resp){                  
                    setTimeout(function(){ window.location.reload();},500);
                }
            }
        );
        return false;
}


function SelectFilter()
{
    var url = "/Exhibition/AjaxServer.aspx?action=filter&filter=" + $("chk_gold").checked + ',' + $("chk_silver").checked;
    new Ajax.Request(
        url,
        {
            method:'post',
            onCreate : function(){
                $("Loading").innerHTML= '<img src="/22.gif">'; 
            },
            onComplete: function(resp){                  
                setTimeout(function(){ window.location.reload();},500);
            }
        }
    );
    return false;
}