Javascript to animate the loading effect

var AjaxLoding = new Object();
//Wraperid: container element that displays loding images
//Ms: represents how long the loding icon is displayed in milliseconds
//Envent: represents the event source object for the originating event, used to obtain the originating event object
//Callback: represents a callback method that is executed after the animation is completed
//The stop () method represents the operation to hide the animation after the successful execution of the callback method
AjaxLoding.load = function(lodingid,ms,event,left,top,callback){

    if (!left || typeof left == undefined)
        left = 0;
    if (!top || typeof top == undefined)
        top = 0;
    this.lodingid = lodingid; //Displays the parent element of the loding icon
    this.obj = $("#" + this.lodingid);
    this.sourceEventElement=$(event.currentTarget);
    this.start = function () {
　　　　　　this.obj.css({positin:"relative"});
        this.sourceEventElement.attr("disabled",true);
        //By default, the icon is centered with the lodingid, and the following style is set
        var imgobj = $("<img src='/images/loaderc.gif' style='position:absolute; width:32px; height:32px;' id='img_loding'/>"); 
        imgobj.css({ left: this.obj.width() / 2-imgobj.width()/2-left, top: this.obj.height() / 2-imgobj.height()/2-top });
        imgobj.appendTo(this.obj);
        this.obj.animate({height:this.obj.height()}, ms, function () {
            callback(); 
        });
    };
    this.stop = function () { 
        $("#img_loding").remove();
        this.sourceEventElement.attr("disabled", false);
    }
};

Call method:

$("#elementid").click(function (e) { 
  var obj = new AjaxLoding.load("div_test", 2000,e,0,0,function () {
            //Alert (" submission successful!" );
            obj.stop();//Hidden load icon
        });
  obj.start();
        });

< img border = 0 id = theimg onclick = window. The open this. (SRC) SRC = "/ / files.jb51.net/file_images/article/201401/131415595482666666.gif? 201401416130"> "this is the loding icon that I used, and you can replace it.