一个简单的loading，纯属自娱自乐

/// <reference path="/scripts/js/jquery.min.js" />
var zsw = {
    loading: function (imgUrl, content, width) {
        if (content == "" || content == undefined || content == null) {
            content = "正在加载中";
        }
        if (width == "" || width == undefined || width == null) {
            width = 250;
        }
        var h = '<div id="zswloading" style="background:url(' + imgUrl + ') no-repeat 50% 30%; position:fixed; min-width:100px; background-color:#fff; min-height:100px; width:' + width + 'px; height:' + width + 'px; border:2px solid #eee; top:0px; bottom:0px; left:0; right:0; margin:auto;box-shadow:0 0 40px #767373;-moz-box-shadow:0 0 40px #767373;-webkit-box-shadow:0 0 40px #767373; border-radius:50%;">        <div style=" text-align:center; color:#808080; margin-top:70%;">' + content + '...</div>    </div>';
        $("body").append(h);
    },
    closeloading: function () {
        $("#zswloading").remove();
    }
}

　　javascript如上，调用如下

<a href="javascript:void(0)" onclick="zsw.loading('loading.gif','正在处理',200)">打开</a>
    <a href="javascript:void(0)" onclick="zsw.closeloading()">关闭</a>

　　依赖jquery