iframe adaptive size implementation code

<script type=”text/javascript”>
var b_width = Math.max(document.documentElement.clientWidth,document.body.clientWidth);
var b_height = Math.max(document.documentElement.clientHeight,document.body.clientHeight);
var c_iframe = document.getElementById("c_iframe");
c_iframe.src = c_iframe.src+”#”+b_width+”|”+b_height; //https://www.jb51.net/c.html#width|height”
}
</script>
<!--js reads the width and height of b.html, and sets the read width and height to the hash of the src of c.html, the intermediate proxy page in the same domain as a.html-->
<iframe id=”c_iframe” height=”0″ width=”0″ src=”https://www.jb51.net/c.html” style=”display:none” ></iframe>

<script type=”text/javascript”>
var b_iframe = parent.parent.document.getElementById("b_iframe");
var hash_url = window.location.hash;
var hash_width = hash_url.split("#")[1].split("|")[0]+"px";
var hash_height = hash_url.split("#")[1].split("|")[1]+"px";
b_iframe.style.width = hash_width;
b_iframe.style.height = hash_height;
</script>