如何使用Jquery自定义命名空间namespace

// 把生成命名空间的方法绑定在jQuery上  
jQuery.namespace = function () {
    var a = arguments, o = null, i, j, d;
    for (i = 0; i < a.length; i = i + 1) {
        d = a[i].split(".");
        o = jQuery;
        for (j = (d[0] == "jQuery") ? 1 : 0; j < d.length; j = j + 1) {
            o[d[j]] = o[d[j]] || {};
            o = o[d[j]];
        }
    }
    return o;
};

jQuery.namespace('jQuery.UnionMedical.Tools');
//格式化金额
jQuery.UnionMedical.Tools.FormatMoney = function (v) {
    v = (Math.round((v - 0) * 100)) / 100;
    v = (v == Math.floor(v)) ? v + ".00" : ((v * 10 == Math.floor(v * 10)) ? v + "0" : v);
    v = String(v);
    var ps = v.split('.');
    var whole = ps[0];
    var sub = ps[1] ? '.' + ps[1] : '.00';
    var r = /(d+)(d{3})/;
    while (r.test(whole)) {
        whole = whole.replace(r, '$1' + ',' + '$2');
    }
    v = whole + sub;
    if (v.charAt(0) == '-') {
        return '-' + v.substr(1);
    }
    return v;
};