利用JS弹出层实现简单的动态提示“正在加载中，请稍等...”

JQuery版本：1.7.1；

编写一个JS类(ck.layer.js)：

/************************************* Achievo.Javascript Library **************************
* Using jQuery 1.7.1
* Using cks.js 1.0.1
* Name : ck.layer.js
* Create by Angle.Yang on 2012/03/07 [V1.0.0]
*******************************************************************************************/
(function ($) {

    $.fn.masklayer = function (settings) {
        /// <summary>
        /// 模态窗口，继承 easy-ui.window
        /// </summary>
        /// <param name="settings" type="object">扩展了{title:[div中的内容], action:[执行的动作，目前支持"close"], result:[返回结果]}</param>
        /// <returns type="void" />

        settings = $.extend(true, { title: '加载中...', action: "open" }, settings);


        /// <summary>
        /// 初始化所有 cks 样式的按钮（页面运行时进行初始化）
        /// </summary>
        /// <returns type="void" />

        _init = function () {
            if (settings.action == "open") {
                if ($("#div_load").length == 0) {
                    var boardDiv = "<div id='div_load'></div>";
                    $(document.body).append(boardDiv);
                }
                if ($("#div_load").length > 0) {
                    $("#div_load").fix_ie6Select();
                    $("#div_load").css("display", "block");
                    $("#div_load").css("height", document.body.offsetHeight);
                    $("#div_load").html(settings.title);
                }
            }
            else if (settings.action == "close") {
                if ($("#div_load").length > 0) $("#div_load").css("display", "none");
            }
            else if (settings.action = "setTitle") {
                if ($("#div_load").length > 0) $("#div_load").html(settings.title);
                else {
                    var boardDiv = "<div id='div_load'>" + settings.title + "</div>";
                    $(document.body).append(boardDiv);
                    $("#div_load").fix_ie6Select();
                    $("#div_load").css("display", "block");
                    $("#div_load").css("height", document.body.offsetHeight);
                }
            }
        };


        return (function () { _init() })();

    };
})(jQuery);