/*requires prototype.js*/
function Locations() {
    this.initialize = function(callback) {
        this.callback = callback;
    }
    this.getCities = function(v_t) {
        var HW = new LocationAjaxProvider(this.callback);
        return HW.getCities(v_t);
    }
    this.getCityAreas = function(v_t) {
        var HW = new LocationAjaxProvider(this.callback);
        return HW.getCityAreas(v_t);
    }
}