function DynamicPropertyContainer(){};
DynamicPropertyContainer.prototype = {
    addDynamicProperty: function(prop) {
        if(this.dynamicProperties.indexOf(prop) === -1) {
            this.dynamicProperties.push(prop);
            this.container.addDynamicProperty(this);
            this._isAnimated = true;
        }
    },
    iterateDynamicProperties: function(){
        this._mdf = false;
        var i, len = this.dynamicProperties.length;
        for(i=0;i<len;i+=1){
            this.dynamicProperties[i].getValue();
            if(this.dynamicProperties[i]._mdf) {
                this._mdf = true;
            }
        }
    },
    initDynamicPropertyContainer: function(container){
        this.container = container;
        this.dynamicProperties = [];
        this._mdf = false;
        this._isAnimated = false;
    }
}