var myajax =
{
    errorfun : function(t)
    {
        alert('发生错误： ' + t.statusText);
    },
    myrequest: function(strurl, param, reqmethod, callbackfunc)
    {
        var success  = Prototype.emptyFunction;
        if (callbackfunc)
        {
            success = callbackfunc;
        }
        try
		{
    	    new Ajax.Request(strurl,
                {
                    parameters: param,
                    method : reqmethod,
                    onFailure:myajax.errorfun,
                    onSuccess:success
                }
            );
        }
        catch (ex)
		{
		    alert(ex.message);
		}
    },
    getcategory : function(sel)
    {
        var pid = $(sel).value;
        myajax.myrequest('ajaxphp/getcategory.php', 'pid='+pid, 'get', myajax.getcategorycallback);
    },
    getcategorycallback : function(response)
    {
        //alert(response.responseText);
        var json = response.responseText.evalJSON(true);
        $('category').options.length = 0; // delete old data
        var opt = new Option('*请选择*', -1);
        $('category').options[0] = opt;
        for (var i = 0; i < json.length; i++)
        {
            /*
            var opt = document.createElement('option');
            opt.text = json[i].c_name;
            opt.value = json[i].id;
            */
            var opt = new Option(json[i].c_name, json[i].id);
            $('category').options[i+1] = opt;
        }
        if (category_id && category_id > 0)
        {
            $('category').value = category_id;
        }
    }
}

function addPageToFavorite()
{
    var aurl = window.location.href;
    var t = '北京飞翔建筑艺术雕刻--' + document.title;
    AddFavorite(aurl, t);
    return false;
}
function AddFavorite(sURL, sTitle)
{
    try
    {
        window.external.addFavorite(sURL, sTitle);
    }
    catch (e)
    {
        try
        {
            window.sidebar.addPanel(sTitle, sURL, "");
        }
        catch (ex)
        {
            alert("加入收藏失败，请使用Ctrl+D进行添加");
        }
    }
}