var ARRM = Class.create({
    initialize: function(url){
        this.url = url;
    },
    encodeObjectValues: function(obj){
        for (var key in obj) {
			encodeURIComponent(obj[key].replace(/&/gi,'%26'));
        }
		return obj;
    },
	
    jsonRequest: function(params, func, div){
		data = "json=" + Object.toJSON(this.encodeObjectValues(params));
        new Ajax.Request(this.url, {
            method: 'post',
            postBody: data,
            onCreate: function(transport){
            },
            onComplete: function(transport){
                var data = transport.responseText.evalJSON(true);
                func(data);
            }
        });
    }
});