js页面加载进度条

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
     <meta http-equiv="X-UA-Compatible" content="IE=9" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <title>页面加载进度条</title>
     <script src="js/jquery-1.4.2.min.js" type="text/javascript"></script>
     <script type="text/javascript">
         var etControl = {};
         etControl.process = function (config) {
             /*需要放在html中的body标签后面使用本控件*/

             var count = 0;
             var id = "loading";
             var el = "#" + id;

             $("body").append('<div id="' + id + '"></div>');

             var divTxt = "#" + id + " div";
             $(el).html("<div></div>");
             $(el).attr("style", "width: 100px;height: 12px;background: #A0DB0E;padding: 5px;position: fixed;left: 0;top: 0;font-size:12px;");
             $(divTxt).attr("style", "width: 1px;height: 12px;background: #F1FF4D;");

             /*更新进度条*/
             this.updateProcess = function (percent) {
                 setTimeout(function () { $(divTxt).animate({ width: percent + "px" }).text(percent + "%") }, ++count * 500);
                 if (percent == 100) {           /*100%就从页面移除loading标签*/
                     setTimeout(function () {
                         $(el).hide(500);
                         setTimeout(function () { $(el).remove() }, 500);
                     }, count * 500 + 800);
                 }
             };
         }

     </script>
 </head>
 <body>

 </body>

 <script type="text/javascript">
     /*需要放在body标签后面，然后在适当的位置调用updateProcess方法*/
     var p = new etControl.process();
     p.updateProcess(34);
     p.updateProcess(57);
     p.updateProcess(62);
     p.updateProcess(90);
     p.updateProcess(100);
 </script>

 </html>

复制过来就是方便自己查看而已

来自http://www.cnblogs.com/timy/archive/2011/12/07/2279200.html
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