如何设置计时器以使图像显示在javascript或html中? [英] How do I set a timer for a image to appear in javascript or html?

问题描述

当前，我有以下代码，但无法在我的Facebook iframe应用程序上正常工作.

Currently I have the following piece of code but it isn't working on my facebook iframe application.

function Timer(){
    document.getElementById('buybtn').style.visibility = "visible"; 
    setTimeout(Timer,1080000);
}

和以下html:

<p style="text-align: center;">'</p>
<div id="buybtn">
   <p style="text-align:center">
      <a href="http://www.google.com" target="_blank">
         <img src="http://www.adspecialist.be/wp-content/themes/adspecialist/img/visit-my-website-en.png" border="0" />
       </a>
   </p>
</div>

请让我知道如何解决此问题

Could you please let me know how to fix this problem

推荐答案

您的代码不起作用，因为 Timer()永远不会被调用，因为您的超时时间 inside 函数.将其移到外部即可使用.

Your code is not supposed to work, because Timer() will never be called since you have your timeout inside the function. Move it outside and it will work.

function Timer(){
    document.getElementById('buybtn').style.visibility = "visible"; 
}

setTimeout(Timer,3000);

演示jsfiddle

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