链接添加随机数

random link

var insertRandom = function(sign) {
    // 默认给含[diy-random] class 的元素添加点击事件
    var class_name = sign || 'diy-random';
    
    $('.' + class_name).livequery('click', function(e) {
        var $this = $(e.target),
            href = $(this).attr('href'),
            random = (+new Date()), res;
        
        if ( href.indexOf('?')>-1 ) {
            if (/rom/.test(href)) {
                res = href.replace(/rom=\d+$/, 'rom=' + random);
            } else {
                res = href + '&rom=' + random;
            }
            
        } else {
            res = href + '?rom=' + random;
        }
        
        $this.attr('href', res);
    });
};