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JavaScript实现弹出广告功能代码

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PHP中文网Original
2017-04-18 17:39:413809browse

本文通过实例代码给大家分享javascript实现弹出广告功能,代码简单易懂,非常不错,具有参考借鉴价值,需要的朋友参考下吧

废话不多说了,直接给大家贴代码了,具体代码如下所示:


<span style="white-space:pre"> </span>var i=0;//记录次数 
  var timer;//定时器id 
  //设置弹出广告 
  onload=function(){ 
  //间隔四秒展示一次广告 
  timer = setInterval(showAd,4000);   
  } 
  //展示2秒以后隐藏广告的方法 
  function showAd(){ 
    i++;//展示的次数加1 
    //若i等于3清空由setInterval设置的定时器 
    if(i==3){ 
      clearInterval(timer); 
    } 
    //1.获取广告 
    var pObj = document.getElementById("ad"); 
    //2,修改广告的样式 
    pObj.style.display="block"; 
    //两秒之后隐藏 
    setTimeout(hiddAd,2000); 
  } 
  //隐藏广告 
  function hiddAd(){ 
    var pObj = document.getElementById("ad"); 
    pObj.style.display="none"; 
  }
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