本文实例讲述了JS基于Ajax实现的网页Loading效果代码。分享给大家供大家参考,具体如下:

这是一款很不错的网页Loading效果,常用于Ajax交互式网页设计中,点击按钮即可弹出Loading框,若Loading框未加载完成时关闭网页,会弹出确认提示框,用于一些对安全性能要求高的网页交互处理中,比如付款操作。

运行效果截图如下:

JS基于Ajax实现的网页Loading效果代码

在线演示地址如下:

http://demo.jb51.net/js/2015/js-ajax-web-loading-style-codes/

具体代码如下:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>很不错的网页Ajax Loading效果</title>
</head>
<BODY STYLE="FONT-SIZE: 10pt; FONT-FAMILY: Verdana, Arial, Helvetica">
<SCRIPT LANGUAGE="JScript">
var NUMBER_OF_REPETITIONS = 40;
var nRepetitions = 0;
var g_oTimer = null;
function startLongProcess()
{
  divProgressDialog.style.display = "";
  resizeModal();
  btnCancel.focus();
  window.onresize = resizeModal;
  window.onbeforeunload = showWarning;
  continueLongProcess();
}
function updateProgress(nNewPercent)
{
  divProgressInner.style.width = (parseInt(divProgressOuter.style.width)
   * nNewPercent / 100)+ "px";
}
function stopLongProcess()
{
  if (g_oTimer != null)
  {
   window.clearTimeout(g_oTimer);
   g_oTimer = null;
  }
  // Hide the fake modal DIV
  divModal.style.width = "0px";
  divModal.style.height = "0px";
  divProgressDialog.style.display = "none";
  // Remove our event handlers
  window.onresize = null;
  window.onbeforeunload = null;
  nRepetitions = 0;
}
function continueLongProcess()
{
  if (nRepetitions < NUMBER_OF_REPETITIONS)
  {
   var nTimeoutLength = Math.random() * 250;
   updateProgress(100 * nRepetitions / NUMBER_OF_REPETITIONS);
   g_oTimer = window.setTimeout("continueLongProcess();", nTimeoutLength);
   nRepetitions++;
  }
  else
  {
   stopLongProcess();
  }
}
function showWarning()
{
  return "Navigating to a different page or refreshing the window could cause you to lose precious data.\n\nAre you*absolutely* certain you want to do this";
}
function resizeModal()
{
  divModal.style.width = document.body.scrollWidth;
  divModal.style.height = document.body.scrollHeight;
  divProgressDialog.style.left = ((document.body.offsetWidth -
divProgressDialog.offsetWidth) / 2);
  divProgressDialog.style.top = ((document.body.offsetHeight -
divProgressDialog.offsetHeight) / 2);
}
</SCRIPT>
<INPUT TYPE="BUTTON" VALUE="Click Me!" onclick="startLongProcess();">
<!-- BEGIN PROGRESS DIALOG -->
<DIV STYLE="BORDER: buttonhighlight 2px outset; FONT-SIZE: 8pt; Z-INDEX:
4; FONT-FAMILY: Tahoma; POSITION: absolute; BACKGROUND-COLOR: buttonface;
DISPLAY: none; WIDTH: 350px; CURSOR: default" ID="divProgressDialog"
onselectstart="window.event.returnValue=false;">
  <DIV STYLE="PADDING: 3px; FONT-WEIGHT: bolder; COLOR: captiontext;
BORDER-BOTTOM: white 2px groove; BACKGROUND-COLOR: activecaption">
   加载中……  </DIV>
  <DIV STYLE="PADDING: 5px">
   请稍等,网页正在处理中……
  </DIV>
  <DIV STYLE="PADDING: 5px">
   可能需要数秒钟.
  </DIV>
  <DIV STYLE="PADDING: 5px">
     <DIV ID="divProgressOuter" STYLE="BORDER: 1px solid threedshadow;
WIDTH: 336px; HEIGHT: 15px">
      <DIV ID="divProgressInner" STYLE="COLOR: white; TEXT-ALIGN:
center; BACKGROUND-COLOR: infobackground; MARGIN: 0px; WIDTH: 0px; HEIGHT:
13px;"></DIV>
     </DIV>
  </DIV>
  <DIV STYLE="BORDER-TOP: white 2px groove; PADDING-BOTTOM: 5px; PADDING-TOP: 3px;
BACKGROUND-COLOR: buttonface; TEXT-ALIGN: center">
     <INPUT STYLE="FONT-FAMILY: Tahoma; FONT-SIZE: 8pt" TYPE="button"
ID="btnCancel" onclick="stopLongProcess();" VALUE="取消">
  </DIV>
</DIV>
<!-- END PROGRESS DIALOG -->
<!-- BEGIN FAKE MODAL DIV-->
<DIV ID="divModal"
  STYLE="BACKGROUND-COLOR: white; FILTER: alpha(opacity=75); LEFT: 0px; POSITION:
 absolute; TOP: 0px; Z-INDEX: 3"
  onclick="window.event.cancelBubble=true; window.event.returnValue=false;">
</DIV>
<!-- END FAKE MODAL DIV -->
</body>
</html>

希望本文所述对大家JavaScript程序设计有所帮助。

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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?