How to implement html nested iframe to wait for the iframe page to load before calling the next step_html/css_WEB-ITnose

如果想在你的html里面显示一张图片，或者显示一个报表，经常会在里面嵌套iframe，当我们点查询报表时，在报表显示过程中，我们想做个遮罩层，提示等待...但是报表显示出来后，我们如何把遮罩层去掉，让报表更好的展示呢？

我就用代码来解释一个例子吧：

<div align="left" style="height: 100%" id ="benefitnotice_report">	<iframe id="benefitnotice_iframe" width="100%" height="90%" frameborder="0" >	</iframe></div>

This is an iframe nested inside the html div

The js that sends the url to display the report is as follows:

	var id ="#benefitnotice_report";		showWaiting('正在加载报表' , null, id);//遮罩层调用		src=src+"&aic1621="+aic1621+"&aic1622="+aic1622+"&aae140="+aae140+"&aaf101="+aaf101+"&aaz070="+aaz070+"&aac031="+aac031;						$("#benefitnotice_iframe").attr("src",src);

After the report is displayed, remove the mask layer:

	$("#benefitnotice_iframe").load(function(){           closeWaiting("#benefitnotice_report");    });