document._getElementById = document.getElementById;
    document.getElementById = function(s) {

        var x = this._getElementById(s);
        if (typeof x != 'undefined' && x != null) return x;
        if (typeof myContainers != 'undefined') {
            for (i = 0; i < myContainers.length; i++) {
                var e = this._getElementById(myContainers[i] + '_' + s);
                if (typeof e != 'undefined' && e != null) return e;
            }
        }
    };